Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - LDO voltage regulator Positive, fixed SOT 223 6

Note: Tab is GND for both packages

KTT PACKAGE

(TOP VIEW)

2 3 4 5

ENABLE

GND

OUT

DDPAK

RESET

DCQ PACKAGE

OUT

GND

ENABLE

SOT223-5

(TOP VIEW)

RESET

TPS726126

TPS72615, TPS72616

TPS72618, TPS72625

www.ti.com

SLVS403H –MAY 2002–REVISED JUNE 2010

LOW INPUT VOLTAGE,

1-A LOW-DROPOUT LINEAR REGULATORS

WITH SUPERVISOR

Check for Samples: TPS726126, TPS72615, TPS72616, TPS72618, TPS72625

FEATURES

DESCRIPTION

• 1-A Low-Dropout Regulator Supports Input

Voltages Down to 1.8-V

The TPS726xx family of 1-A low-dropout (LDO) linear

regulators has fixed voltage options available that are

• Available in 1.26-V, 1.5-V, 1.6-V, 1.8-V, 2.5-V

commonly used to power the latest DSPs, FPGAs,

• Stable With Any Type/Value Output Capacitor

and microcontrollers. The integrated supervisory

• ±2% Output Voltage Tolerance Over Line,

circuitry provides an active low RESET signal when

Load, and Temperature (–40°C to +125°C)

the output falls out of regulation. The no

capacitor/any capacitor feature allows the customer

• Integrated Supervisor (SVS) With 200-ms

to tailor output transient performance as needed.

RESET Delay Time

Therefore, compared to other regulators capable of

• Low 170-mV Dropout Voltage at 1 A

providing the same output current, this family of

(TPS72625)

regulators can provide a stand alone power supply

• Low 210-mA Ground Current at Full Load

solution or a post regulator for a switch mode power

supply.

• Less than 1-mA Standby Current

• Integrated UVLO with Thermal and

These regulators operate over a wide range of input

voltages (1.8 V to 6 V) and have very low dropout

Overcurrent Protection

(170 mV at 1-A). Ground current is typically 210 µA at

• 5-Lead SOT223 or DDPAK Surface-Mount

full load and drops to less than 80 µA at no load.

Package

Standby current is less than 1 µA.

Unlike some regulators that have a minimum current

APPLICATIONS

requirement, the TPS726xx family is stable with no

• PCI Cards

output load current. The low noise capability of this

• Modem Banks and Telecom Boards

family, coupled with its high current operation and

• DSP, FPGA, and Microprocessor Power

ease of power dissipation, make it ideal for telecom

Supplies

boards, modem banks, and other noise sensitive

• Portable, Battery-Powered Applications

applications.

• 1.26-V Core Voltage for the Following DSPs:

The TPS726xx is available in either a SOT223 or

– TMS320vC5501

DDPAK package. The TPS726126 is available in a

SOT223 package only.

– TMS320vC5502

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.

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 (23 pages)

PAGE 1
TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 www.ti.com SLVS403H – MAY 2002 – REVISED JUNE 2010 LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR Check for Samples: TPS726126, TPS72615, TPS72616, TPS72618, TPS72625 FEATURES 1 • • • • • • • • • • 1-A Low-Dropout Regulator Supports Input Voltages Down to 1.8-V Available in 1.26-V, 1.5-V, 1.6-V, 1.8-V, 2.
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TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 SLVS403H – MAY 2002 – REVISED JUNE 2010 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 www.ti.com SLVS403H – MAY 2002 – REVISED JUNE 2010 ELECTRICAL CHARACTERISTICS over recommended operating free-air temperature range VI = VO(typ) + 1 V, IO= 1 mA, EN = IN, CO = 1 µF, CI = 1 µF (unless otherwise noted). Typical values are at +25°C. PARAMETER VI (1) IO TEST CONDITIONS Input voltage Continuous output current Bandgap voltage reference VO Output voltage I MIN 6 V 0 1 A V 1.177 1.220 1.263 1.222 1.26 1.298 1.8 V ≤ VI ≤ 5.
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TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 SLVS403H – MAY 2002 – REVISED JUNE 2010 www.ti.com FUNCTIONAL BLOCK DIAGRAM TPS726126/15/16 IN OUT EN Current Limit / Thermal Protection 1.220 Vref GND RESET Deglitch and Delay 0.93 × Vref Terminal Functions TERMINAL NAME NO. DESCRIPTION GND 3 Ground ENABLE 1 Enable input IN 2 Input supply voltage RESET 5 This terminal is the RESET output.
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TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 www.ti.com SLVS403H – MAY 2002 – REVISED JUNE 2010 TYPICAL CHARACTERISTICS TPS72618 OUTPUT VOLTAGE vs JUNCTION TEMPERATURE TPS72618 OUTPUT VOLTAGE vs OUTPUT CURRENT 250 1.805 1.8015 V O − Output Voltage − V 1.8005 1.8 1.7995 Ground Current − µ A VI = 2.8 V Co = 1 µF VI = 2.8 V Co = 1 µF TJ = 25° C 1.801 V O − Output Voltage − V TPS72618 GROUND CURRENT vs JUNCTION TEMPERATURE 1.800 IO = 0 mA 1.795 IO = 1 A 1.
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TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 SLVS403H – MAY 2002 – REVISED JUNE 2010 www.ti.com TYPICAL CHARACTERISTICS (continued) MINIMUM REQUIRED INPUT VOLTAGE vs OUTPUT VOLTAGE TJ = 125°C TJ = 25°C 2.5 TJ = −40°C 2 1.5 2 2.5 3 3.5 4 4.5 −100 0 50 100 150 200 250 300 350 400 450 500 −100 1 0.5 0 0 5 t − Time − µs 10 15 20 25 30 35 40 45 50 t − Time − µs Figure 9.
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TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 www.ti.com SLVS403H – MAY 2002 – REVISED JUNE 2010 TYPICAL CHARACTERISTICS (continued) TPS72618 RIPPLE REJECTION vs FREQUENCY 2.5 2000 VI= 2.8 V, VO = 1.8 V, CO = 10 µF 90 2 IO = 1 A 1.5 1 80 60 10 µF / 1mA 50 IO = 1 mA 40 30 10 µF / 1A 10 100 1k 10 k f − Frequency − Hz 1500 TJ = 25°C 1400 TJ = −40°C 1300 1100 10 Figure 13. 100 1k 10 k 100 k 1M 2 2.5 3 3.5 4 4.5 f − Frequency − Hz VI − Input voltage − V Figure 14. Figure 15.
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TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 SLVS403H – MAY 2002 – REVISED JUNE 2010 www.ti.com APPLICATION INFORMATION The TPS726xx family of low-dropout (LDO) regulators have numerous features that make it apply to a wide range of applications. The family operates with very low input voltage (≥1.8 V) and low dropout voltage (typically 200 mV at full load), making it an efficient stand-alone power supply or post regulator for battery or switch mode power supplies.
PAGE 9
TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 www.ti.com SLVS403H – MAY 2002 – REVISED JUNE 2010 In general, the maximum expected power (PD(max)) consumed by a linear regulator is computed as: ǒ P max + V *V D I(avg) O(avg) Ǔ I ) V O(avg) I(avg) xI (Q) (1) Where: • VI(avg) is the average input voltage. • VO(avg) is the average output voltage. • O(avg) is the average output current. • I(Q) is the quiescent current.
PAGE 10
TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 SLVS403H – MAY 2002 – REVISED JUNE 2010 www.ti.com Equation 2 simplifies into Equation 3: T + T ) PDmax x R J A θJA (3) Rearranging Equation 3 gives Equation 4: T –T R + J A θJA P max D (4) Using Equation 3 and the computer model generated curves shown in Figure 20 and Figure 23, a designer can quickly compute the required heatsink thermal resistance/board area for a given ambient temperature, power dissipation, and operating environment.
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TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 www.ti.com SLVS403H – MAY 2002 – REVISED JUNE 2010 2 oz. Copper Solder Pad with 25 Thermal Vias 1 oz. Copper Power Plane 1 oz. Copper Ground Plane Thermal Vias, 0,3 mm Diameter, 1,5 mm Pitch Figure 21. DDPAK Thermal Resistance From the data in Figure 22 and rearranging Equation 4, the maximum power dissipation for a different ground plane area and a specific ambient temperature can be computed.
PAGE 12
TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 SLVS403H – MAY 2002 – REVISED JUNE 2010 R θJA www.ti.com max + (125 * 55)°Cń800 mW + 87.5°CńW (8) 2 From Figure 23, RqJA vs PCB Copper Area, the ground plane needs to be 0.55 in for the part to dissipate 800 mW. The operating environment used to construct Figure 23 consisted of a board with 1 oz. copper planes. The package is soldered to a 1 oz. copper pad on the top of the board. The pad is tied through thermal vias to the 1 oz. ground plane.
PAGE 13
TPS726126 TPS72615, TPS72616 TPS72618, TPS72625 www.ti.com SLVS403H – MAY 2002 – REVISED JUNE 2010 REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision G (May 2006) to Revision H Page • Deleted Figure 14, Output Impedance vs Frequency ........................................................................................................... 7 • Added Figure 18 .............................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2014 Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
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PACKAGE MATERIALS INFORMATION www.ti.com 4-Jun-2014 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) TPS726126DCQR SOT-223 DCQ 6 2500 330.0 12.4 TPS72615DCQR SOT-223 DCQ 6 2500 330.0 TPS72615KTTR DDPAK/ TO-263 KTT 5 500 330.
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PACKAGE MATERIALS INFORMATION www.ti.com 4-Jun-2014 Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TO-263 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS726126DCQR SOT-223 DCQ 6 2500 358.0 335.0 35.0 TPS72615DCQR SOT-223 DCQ 6 2500 358.0 335.0 35.0 TPS72615KTTR DDPAK/TO-263 KTT 5 500 367.0 367.0 45.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.