Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - DC/DC voltage regulator Holder QFN 16

22uF

3.3V / 3A

10uF

(4 .. 17)V

3.3nF

TLV62130

750k

240k

PVIN

AVIN

SS/TR

DEF

FSW

VOS

AGND

PGND

100k

1 / 2.2 µH

TLV62130, TLV62130A

www.ti.com

SLVSB74B –FEBRUARY 2012–REVISED JUNE 2013

4-17V 3A Step-Down Converter with DCS-Control

Check for Samples: TLV62130, TLV62130A

FEATURES

DESCRIPTION

The TLV62130 is an easy to use synchronous step

• DCS-Control ™Topology

down DC-DC converter optimized for applications

• Input Voltage Range: 4 to 17V

with high power density. A high switching frequency

• Up to 3A Output Current

of typically 2.5MHz allows the use of small inductors

and provides fast transient response as well as high

• Adjustable Output Voltage from 0.9 to 5V

output voltage accuracy by utilization of the DCS-

• Pin-Selectable Output Voltage (nominal, + 5%)

Control™ topology.

• Programmable Soft Start and Tracking

With its wide operating input voltage range of 4V to

• Seamless Power Save Mode Transition

17V, the devices are ideally suited for systems

• Quiescent Current of 19µA (typ.)

powered from either a Li-Ion or other batteries as well

as from 12V intermediate power rails. It supports up

• Selectable Operating Frequency

to 3A continuous output current at output voltages

• Power Good Output

between 0.9V and 5V (with 100% duty cycle mode).

• 100% Duty Cycle Mode

The output voltage startup ramp is controlled by the

• Short Circuit Protection

soft-start pin, which allows operation as either a

• Over Temperature Protection

standalone power supply or in tracking configurations.

Power sequencing is also possible by configuring the

• For Improved Feature Set, see TPS62130

Enable and open-drain Power Good pins.

• Available in a 3 × 3 mm, QFN-16 Package

In Power Save Mode, the devices show quiescent

current of about 19μA from VIN. Power Save Mode,

APPLICATIONS

entered automatically and seamlessly if load is small,

• Standard 12V Rail Supplies

maintains high efficiency over the entire load range.

• POL Supply from Single or Multiple Li-Ion

In Shutdown Mode, the device is turned off and

Battery shutdown current consumption is less than 2μA.

• Embedded Systems

The device is packaged in a 16-pin QFN package

measuring 3 × 3 mm (RGT).

• LDO replacement

• Mobile PC's, Tablet, Modems, Cameras

spacing

Figure 1. Typical Application and Efficiency

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.

2DCS-Control is a trademark 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 (35 pages)

PAGE 1
TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 4-17V 3A Step-Down Converter with DCS-ControlTM Check for Samples: TLV62130, TLV62130A FEATURES DESCRIPTION • • • • • • • • • • • • • • • The TLV62130 is an easy to use synchronous step down DC-DC converter optimized for applications with high power density. A high switching frequency of typically 2.
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 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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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 ELECTRICAL CHARACTERISTICS over free-air temperature range (TA=-40°C to +85°C), typical values at VIN=12V and TA=25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VIN Input voltage range (1) 17 V IQ Operating quiescent current EN=High, IOUT=0mA, device not switching 19 27 µA ISD Shutdown current (2) EN=Low 1.5 4 µA 2.7 2.
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 www.ti.com DEVICE INFORMATION SW 3 PG 4 PGND VOS EN 13 Exposed Thermal Pad 5 6 7 8 DEF 2 14 FSW SW 15 AGND 1 16 FB SW PGND RGT PACKAGE (TOP VIEW) 12 PVIN 11 PVIN 10 AVIN 9 SS/TR Terminal Functions PIN (1) NAME NO. I/O DESCRIPTION SW 1,2,3 O Switch node, which is connected to the internal MOSFET switches. Connect inductor between SW and output capacitor.
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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 FUNCTIONAL BLOCK DIAGRAM PG Soft start Thermal Shtdwn UVLO AVIN PVIN PVIN PG control HS lim comp EN* SW SS/TR power control control logic gate drive SW DEF* SW FSW* comp LS lim VOS direct control & compensation ramp _ FB comparator + timer tON error amplifier DCS - ControlTM * This pin is connected to a pull down resistor internally (see Detailed Description section). AGND PGND PGND Figure 2.
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 www.ti.com PARAMETER MEASUREMENT INFORMATION List of Components REFERENCE DESCRIPTION IC 17V, 3A Step-Down Converter, QFN MANUFACTURER L1 2.2µH, 0.165 x 0.165 in Cin 10µF, 25V, Ceramic Standard Cout 22µF, 6.
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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 EFFICIENCY vs OUTPUT CURRENT EFFICIENCY vs INPUT VOLTAGE 100.0 100.0 90.0 90.0 80.0 70.0 VIN=12V VIN=17V Efficiency (%) Efficiency (%) 80.0 60.0 50.0 40.0 30.0 IOUT=10mA 50.0 IOUT=1mA IOUT=1A IOUT=100mA 40.0 0.0 0.0001 0.001 0.01 0.1 Output Current (A) 1 VOUT=5.0V L=2.2uH (XFL4020) Cout=22uF 20.0 VOUT=5.0V L=2.2uH (XFL4020) Cout=22uF 10.0 10.0 0.
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 www.ti.com EFFICIENCY vs INPUT VOLTAGE 100.0 100.0 90.0 90.0 80.0 80.0 70.0 70.0 60.0 VIN=12V 50.0 Efficiency (%) Efficiency (%) EFFICIENCY vs OUTPUT CURRENT VIN=17V VIN=5V 40.0 30.0 0.0 0.0001 IOUT=1A 40.0 0.001 0.01 0.1 Output Current (A) 1 VOUT=3.3V L=2.2uH (XFL4020) Cout=22uF 10.0 0.0 10 4 5 6 7 8 G001 9 10 11 12 13 14 15 16 17 Input Voltage (V) G001 Figure 10. Efficiency with 2.5MHz, Vout=3.
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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 OUTPUT VOLTAGE vs OUTPUT CURRENT OUTPUT VOLTAGE vs INPUT VOLTAGE 3.40 3.40 Output Voltage (V) Output Voltage (V) VIN=17V 3.35 VIN=12V 3.30 VIN=5V 3.25 VOUT=3.3V L=2.2uH (XFL4020) Cout=22uF 3.20 0.0001 0.001 0.01 0.1 Output Current (A) 1 IOUT=100mA 3.25 VOUT=3.3V L=2.2uH (XFL4020) Cout=22uF 4 7 10 13 Input Voltage (V) 16 G001 Figure 16. Output Voltage Accuracy (Load Regulation) Figure 17.
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 www.ti.com STATIC DRAIN-SOURCE-RESISTANCE (RDSon) vs INPUT VOLTAGE STATIC DRAIN-SOURCE-RESISTANCE (RDSon) vs INPUT VOLTAGE 100.0 200.0 160.0 125°C RDSon Low−Side (mΩ) RDSon High−Side (mΩ) 180.0 140.0 120.0 85°C 100.0 25°C 80.0 −10°C 60.0 −40°C 40.0 80.0 125°C 60.0 85°C 25°C 40.0 −10°C 20.0 −40°C 20.0 0.0 0.0 3.0 6.0 9.0 12.0 Input Voltage (V) 15.0 0.0 0.0 18.0 20.
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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 OUTPUT VOLTAGE vs TIME OUTPUT VOLTAGE vs TIME Figure 28. PWM-PSM-Transition (VIN=12V, VOUT=3.3V with 50mV/div) Figure 29. Load Transient Response (IOUT= 0.5 to 3 to 0.5 A, VIN=12V, VOUT=3.3V) OUTPUT VOLTAGE vs TIME OUTPUT VOLTAGE vs TIME Figure 30. Load Transient Response of Figure 29, rising edge Figure 31.
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 12 www.ti.com OUTPUT VOLTAGE vs TIME OUTPUT VOLTAGE vs TIME Figure 32. Startup into 100mA (VIN=12V, VOUT=3.3V) Figure 33. Startup into 3A (VIN=12V, VOUT=3.3V) PWM SIGNALS vs TIME POWER SAVE MODE SIGNALS vs TIME Figure 34. Typical Operation in PWM Mode (IOUT=1A) Figure 35.
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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 AMBIENT TEMPERATURE vs OUTPUT POWER 125 125 115 115 Free−Air Temperature (°C) Free−Air Temperature (°C) AMBIENT TEMPERATURE vs OUTPUT CURRENT 105 95 85 TLV62130 EVM L=2.2uH (XFL4020) VIN=12V, VOUT=3.3V 75 65 55 0 0.5 1 105 95 85 TLV62130 EVM L=2.2uH(XFL4020) VIN=12V, VOUT=3.3V 75 65 1.5 2 2.5 Output Current (A) 3 3.5 55 0 2 G000 Figure 36. Maximum Ambient Temperature (fSW=2.
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 www.ti.com DETAILED DESCRIPTION Device Operation The TLV62130 synchronous switched mode power converters are based on DCS-Control™ (Direct Control with Seamless Transition into Power Save Mode), an advanced regulation topology, that combines the advantages of hysteretic, voltage mode and current mode control including an AC loop directly associated to the output voltage.
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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 100% Duty-Cycle Operation The duty cycle of the buck converter is given by D=Vout/Vin and increases as the input voltage comes close to the output voltage. In this case, the device starts 100% duty cycle operation turning on the high-side switch 100% of the time. The high-side switch stays turned on as long as the output voltage is below the internal setpoint.
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 I peak ( typ ) = I LIMF + www.ti.com VL × t PD L (4) where ILIMF is the static current limit, specified in the ELECTRICAL CHARACTERISTICS, L is the inductor value, VL is the voltage across the inductor (VIN - VOUT) and tPD is the internal propagation delay. The current limit can exceed static values, especially if the input voltage is high and very small inductances are used.
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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 APPLICATION INFORMATION The following information is intended to be a guideline through the individual power supply design process. Programming The Output Voltage The TLV62130 can be programmed for output voltages from 0.9V to 5V by using a resistive divider from VOUT to AGND. The voltage at the FB pin is regulated to 800mV.
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 www.ti.com where IL(max) is the maximum inductor current, ΔIL is the Peak to Peak Inductor Ripple Current, L(min) is the minimum effective inductor value and fSW is the actual PWM Switching Frequency. spacing Calculating the maximum inductor current using the actual operating conditions gives the minimum saturation current of the inductor needed. A margin of about 20% is recommended to add.
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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 Soft Start Capacitor A capacitance connected between SS/TR pin and AGND allows a user programmable start-up slope of the output voltage. A constant current source supports 2.5µA to charge the external capacitance. The capacitor required for a given soft-start ramp time for the output voltage is given by: C SS = t SS × 2.5mA 1.
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 www.ti.com spacing VOUT1 PVIN SW AVIN VOS EN PG TLV62130 SS/TR FB DEF AGND FSW PGND PVIN SW AVIN VOS VOUT2 PG EN R1 TLV62130 SS/TR R2 FB DEF AGND FSW PGND Figure 39. Sequence for Ratiometric and Simultaneous Startup The resistive divider of R1 and R2 can be used to change the ramp rate of VOUT2 faster, slower or the same as VOUT1.
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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 spacing Though the TLV62130 is stable without the pole and zero being in a particular location, adjusting their location to the specific needs of the application can provide better performance in Power Save mode and/or improved transient response. An external feedforward capacitor can also be added. A more detailed discussion on the optimization for stability vs. transient response can be found in SLVA289 and SLVA466.
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 GND C www.ti.com R2 8 C PVIN AVIN 7 R1 6 5 9 4 10 3 11 2 12 1 13 CIN 14 15 PG 16 EN L1 to GND plane VOUT COUT to AGND GND Figure 40. Layout Example THERMAL INFORMATION Implementation of integrated circuits in low-profile and fine-pitch surface-mount packages typically requires special attention to power dissipation.
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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 Application Example As Power LED Supply The TLV62130 can be used as a power supply for power LEDs. The FB pin can be easily set down to lower values than nominal by using the SS/TR pin. With that, the voltage drop on the sense resistor is low to avoid excessive power loss. Since this pin provides 2.5µA, the feedback pin voltage can be adjusted by an external resistor per Equation 15.
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 www.ti.com spacing The transfer function of the inverting power supply configuration differs from the buck mode transfer function, incorporating a Right Half Plane Zero additionally. The loop stability has to be adapted and an output capacitance of at least 22µF is recommended. A detailed design example is given in SLVA469. Typical Applications spacing spacing spacing 1 / 2.2 µH (5 ..
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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 spacing spacing 1 / 2.2 µH (4 .. 17)V 10uF PVIN SW AVIN VOS EN 1.8V / 3A 100k PG 300k 22uF TLV62130 FB SS/TR 3.3nF DEF AGND FSW PGND 240k Figure 46. 1.8V/3A Power Supply spacing spacing 1 / 2.2 µH (4 .. 17)V 10uF PVIN SW AVIN VOS EN 1.5V / 3A 100k PG 130k 22uF TLV62130 FB SS/TR 3.3nF DEF AGND FSW PGND 150k Figure 47. 1.5V/3A Power Supply spacing spacing 1 / 2.2 µH (4 ..
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TLV62130, TLV62130A SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 www.ti.com 1 / 2.2 µH (4 .. 17)V 10uF PVIN SW AVIN VOS EN 1V / 3A 100k PG 51k 22uF TLV62130 SS/TR 3.3nF FB DEF AGND FSW PGND 200k Figure 49. 1V/3A Power Supply Active Output Discharge spacing The TLV62130A pulls the PG pin Low, when the device is shut down by EN, UVLO or thermal shutdown. Connecting PG to Vout through a resistor can be used to discharge Vout in those cases (see Figure 50).
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TLV62130, TLV62130A www.ti.com SLVSB74B – FEBRUARY 2012 – REVISED JUNE 2013 REVISION HISTORY Changes from Original (February 2012) to Revision A Page • Changed text in Tablenote 3 of Terminal Functions table .................................................................................................... 4 • Added text to Power Save Mode Operation section for clarification. .................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 2-Jul-2013 continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
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PACKAGE MATERIALS INFORMATION www.ti.com 3-Jul-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing TLV62130ARGTR QFN RGT 16 TLV62130ARGTT QFN RGT TLV62130RGTR QFN RGT TLV62130RGTT QFN RGT SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.0 Q2 16 250 180.0 12.4 3.3 3.3 1.1 8.0 12.0 Q2 16 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 3-Jul-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TLV62130ARGTR QFN RGT 16 3000 552.0 367.0 36.0 TLV62130ARGTT QFN RGT 16 250 552.0 185.0 36.0 TLV62130RGTR QFN RGT 16 3000 552.0 367.0 36.0 TLV62130RGTT QFN RGT 16 250 552.0 185.0 36.
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