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APPLICATIONS

DESCRIPTION

PTH04T260W , PTH04T261W

www.ti.com

.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009

3-A, 2.2-V to 5.5-V INPUT, NON-ISOLATED,

WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans™

• Up to 3-A Output Current • TurboTrans™ Technology

• 2.2-V to 5.5-V Input Voltage • Designed to meet Ultra-Fast Transient

Requirements up to 300 A/ µ s

• Wide-Output Voltage Adjust (0.69 V to 3.6 V)

• SmartSync Technology

• ± 1.5% Total Output Voltage Variation

• Efficiencies up to 96%

• Output Overcurrent Protection

• Complex Multi-Voltage Systems

(Nonlatching, Auto-Reset)

• Microprocessors

• Operating Temperature: – 40 ° C to 85 ° C

• Bus Drivers

• Safety Agency Approvals:

– UL60950, CSA 22.2 950, EN60950 VDE

• Prebias Startup

• On/Off Inhibit

• Differential Output Voltage Remote Sense

• Adjustable Undervoltage Lockout

• Auto-Track™ Sequencing

• Ceramic Capacitor Version (PTH04T261W)

The PTH04T260/261W is a high-performance, 3-A rated, non-isolated power module. This regulator represents

the 2nd generation of the PTH series of power modules which include a reduced footprint and improved features.

The PTH04T261W is optimized to be used in applications requiring all ceramic capacitors.

Operating from an input voltage range of 2.2 V to 5.5 V, the PTH04T260/261W requires a single resistor to set

the output voltage to any value over the range, 0.69 V to 3.6 V. The wide input voltage range makes the

PTH04T260/261W particularly suitable for advanced computing and server applications that use a 2.5-V, 3.3-V or

5-V intermediate bus architecture.

The module incorporates a comprehensive list of features. Output over-current and over-temperature shutdown

protects against most load faults. A differential remote sense ensures tight load regulation. An adjustable

under-voltage lockout allows the turn-on voltage threshold to be customized. Auto-Track™ sequencing is a

popular feature that greatly simplifies the simultaneous power-up and power-down of multiple modules in a

power system.

The PTH04T260/261W includes new patent pending technologies, TurboTrans™ and SmartSync. The

TurboTrans feature optimizes the transient response of the regulator while simultaneously reducing the quantity

of external output capacitors required to meet a target voltage deviation specification. Additionally, for a target

output capacitor bank, TurboTrans can be used to significantly improve the regulators transient response by

reducing the peak voltage deviation. SmartSync allows for switching frequency synchronization of multiple

modules, thus simplifying EMI noise suppression tasks and reduces input capacitor RMS current requirements.

Double-sided surface mount construction provides a low profile and compact footprint. Package options include

both through-hole and surface mount configurations that are lead (Pb) - free and RoHS compatible.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2 TurboTrans, TMS320 are trademarks of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (36 pages)

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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 3-A, 2.2-V to 5.5-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans™ FEATURES 1 • • • • • • 2 • • • • • • • • Up to 3-A Output Current 2.2-V to 5.5-V Input Voltage Wide-Output Voltage Adjust (0.69 V to 3.6 V) ±1.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 ORDERING INFORMATION For the most current package and ordering information, see the Package Option Addendum at the end of this data sheet, or see the TI website at www.ti.com.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com ELECTRICAL CHARACTERISTICS PTH04T260W TA =25°C, VI = 5 V, VO = 3.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 ELECTRICAL CHARACTERISTICS (continued) PTH04T260W TA =25°C, VI = 5 V, VO = 3.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com ELECTRICAL CHARACTERISTICS PTH04T261W (Ceramic Capacitors) TA = 25°C, VI = 5 V, VO = 3.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 ELECTRICAL CHARACTERISTICS (continued) PTH04T261W (Ceramic Capacitors) TA = 25°C, VI = 5 V, VO = 3.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com PTH04T260/261W (TOP VIEW) 1 10 9 2 8 7 6 5 3 4 TERMINAL FUNCTIONS TERMINAL NAME NO. DESCRIPTION VI 2 The positive input voltage power node to the module, which is referenced to common GND. VO 4 The regulated positive power output with respect to the GND.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 TYPICAL CHARACTERISTICS (1) (2) CHARACTERISTIC DATA (VI = 5 V) EFFICIENCY vs OUTPUT CURRENT 0.6 24 VIN = 5 V 2.5 V VIN = 5 V VO − Output Voltage Ripple − VPP(mV) 3.3 V Efficiency − % 90 80 1.8 V 1.0 V 1.2 V 1.5 V 70 VO 0.7 V 3.3 V 2.5 V 1.8 V 1.5 V 1.2 V 1.0 V 0.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS (1) (2) CHARACTERISTIC DATA (VI = 3.3 V) EFFICIENCY vs OUTPUT CURRENT 14 VIN = 3.3 V 2.5 V VO − Output Voltage Ripple − VPP(mV) 90 Efficiency − % 0.6 1.5 V 1.8 V 1.2 V 1.0 V 70 0.7 V VO 2.5 V 1.8 V 1.5 V 1.2 V 1.0 V 0.7 V 60 2.5 V 1.8 V 1.2 V 1.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 APPLICATION INFORMATION ADJUSTING THE OUTPUT VOLTAGE The VO Adjust control (pin 7) sets the output voltage of the PTH04T260/261W. The adjustment range of the PTH04T260/261W is 0.69V to 3.6V.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com Table 2. Output Voltage Set-Point Resistor Values (Standard Values) 12 VO Required (V) RSET (kΩ) VO Required (V) RSET (kΩ) 0.70 681 1.80 4.75 0.75 113 1.85 4.53 0.80 61.9 1.90 4.22 0.85 41.2 1.95 4.02 0.90 31.6 2.00 3.83 0.95 24.9 2.10 3.40 1.00 20.5 2.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 CAPACITOR RECOMMENDATIONS FOR THE PTH04T260/261W POWER MODULE Capacitor Technologies Electrolytic Capacitors When using electrolytic capacitors, high-quality, computer-grade electrolytic capacitors are recommended.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com Output Capacitor (Required) The PTH04T261W requires a minimum output capacitance of 300µF of ceramic type. The PTH04T260W requires a minimum 100µF of ceramic and 150 F of non-ceramic output capacitance.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 Designing for Fast Load Transients The transient response of the dc/dc converter has been characterized using a load transient with a di/dt of 2.5A/µs.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com Table 3.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 TURBOTRANS TurboTrans™ Technology TurboTrans technology is a feature introduced in the T2 generation of the PTH/PTV family of power modules. TurboTrans optimizes the transient response of the regulator with added external capacitance using a single external resistor.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 PTH04T260W Type B Capacitors 5-V Input 3.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com PTH04T260W Type C Capacitors 5-V Input 3.3-V Input 40 40 30 30 Without TurboTrans Without TurboTrans Figure 14. Capacitor Type C, 5000 < C(µF) x ESR(mΩ) ≤ 10,000 (e.g.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 TurboTransE AutoTrack VI SYNC RTT 0 kΩ (Note A) TT +Sense VI VO VO PTH04T260W INH/UVLO −Sense GND VoAdj 3 7 + CO1 200 µF Ceramic RSET 1% 0.05 W CI 330 µF (Required) +Sense L O A D CO2 1320 µF Type B GND GND UDG−06047 A.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com UNDERVOLTAGE LOCKOUT (UVLO) The PTH04T260/261W power modules incorporate an input undervoltage lockout (UVLO). The UVLO feature prevents the operation of the module until there is sufficient input voltage to produce a valid output voltage.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 Soft-Start Power Up The Auto-Track feature allows the power-up of multiple PTH/PTV modules to be directly controlled from the Track pin.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com Output On/Off Inhibit For applications requiring output voltage on/off control, the PTH04T260/261W incorporates an output Inhibit control pin. The inhibit feature can be used wherever there is a requirement for the output voltage from the regulator to be turned off.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 Overtemperature Protection (OTP) A thermal shutdown mechanism protects the module’s internal circuitry against excessively high temperatures. A rise in the internal temperature may be the result of a drop in airflow, or a high ambient temperature.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com Auto-Track™ Function The Auto-Track function is unique to the PTH/PTV family, and is available with all POLA products. Auto-Track was designed to simplify the amount of circuitry required to make the output voltage from each module power up and power down in sequence.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 Notes on Use of Auto-Track™ 1. The Track pin voltage must be allowed to rise above the module set-point voltage before the module regulates at its adjusted set-point voltage. 2.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.com VTRK (1 V/div) VTRK (1 V/div) V01 (1 V/div) V01 (1 V/div) V02 (1 V/div) T − Time − 20 ms/div Figure 25. Simultaneous Power Up With Auto-Track Control V02 (1 V/div) T − Time − 200 µs/div Figure 26.
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PTH04T260W, PTH04T261W www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009 Track VI = 5 V +Sense PTH04T260W VI VO 3.3 V VO = 2.5 V IO Inhibit GND VOAdj −Sense + RSET 2.37 kΩ CI 330 µF CO 200 µF VCORE VCCIO ASIC UDG−06055 Figure 27.
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PTH04T260W, PTH04T261W SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009.................................................................................................................................................. www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 13-Nov-2010 Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
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