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TPS54JA20 ACTIVE 2.7-V to 16-V input, 12-A synchronous buck converter with remote sense and latch-off current limit This 12-A converter product offers greater efficiency in a in smaller, fully lead-free package.

Product details

Vin (Min) (V) 3 Vin (Max) (V) 15 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 12 Iq (Typ) (uA) 320 Switching frequency (Min) (kHz) 250 Switching frequency (Max) (kHz) 1000 Features Adjustable Current Limit, Enable, Light Load Efficiency, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Forced PWM, Soft Start Adjustable, Over Current Protection, UVLO Fixed Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1
Vin (Min) (V) 3 Vin (Max) (V) 15 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 12 Iq (Typ) (uA) 320 Switching frequency (Min) (kHz) 250 Switching frequency (Max) (kHz) 1000 Features Adjustable Current Limit, Enable, Light Load Efficiency, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Forced PWM, Soft Start Adjustable, Over Current Protection, UVLO Fixed Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1
VQFN (RGF) 40 35 mm² 5 x 7
  • Conversion Input Voltage Range: 3 V to 15 V
  • VDD Input Voltage Range: 4.5 V to 25 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • 5-V LDO Output
  • Integrated Power MOSFETs with 12-A Continuous
    Output Current
  • <10-µA Shut Down Current
  • Auto-Skip Eco-mode™ for Light-Load Efficiency
  • D-CAP™ Mode with Fast Transient Response
  • Selectable Switching Frequency from 250 kHz to
    1 MHz with an External Resistor
  • Built-in 1%, 0.6-V Reference
  • 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable
    Internal Voltage Servo Soft-Start
  • Pre-Charged Start-up Capability
  • Integrated Boost Switch
  • Adjustable Overcurrent Limit Via External Resistor
  • Overvoltage/Undervoltage, UVLO and Over-
    Temperature Protection
  • Support All Ceramic Output Capacitors
  • Open Drain Power Good Indication
  • 40-pin VQFN Package with Thermal Pad
  • Conversion Input Voltage Range: 3 V to 15 V
  • VDD Input Voltage Range: 4.5 V to 25 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • 5-V LDO Output
  • Integrated Power MOSFETs with 12-A Continuous
    Output Current
  • <10-µA Shut Down Current
  • Auto-Skip Eco-mode™ for Light-Load Efficiency
  • D-CAP™ Mode with Fast Transient Response
  • Selectable Switching Frequency from 250 kHz to
    1 MHz with an External Resistor
  • Built-in 1%, 0.6-V Reference
  • 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable
    Internal Voltage Servo Soft-Start
  • Pre-Charged Start-up Capability
  • Integrated Boost Switch
  • Adjustable Overcurrent Limit Via External Resistor
  • Overvoltage/Undervoltage, UVLO and Over-
    Temperature Protection
  • Support All Ceramic Output Capacitors
  • Open Drain Power Good Indication
  • 40-pin VQFN Package with Thermal Pad

TPS53315 is a D-CAP™ mode, 12-A synchronous switcher with integrated MOSFETs. It is designed for ease of use, low external component count, and small package power systems.

This device features single-rail input support, one 19-mΩ and one 7-mΩ integrated MOSFET, accurate 1%, 0.6 V Reference, and integrated boost switch. A sample of competitive features include: greater than 96% maximum efficiency, 3 V to 15 V wide input voltage range, very low external component count, D-CAP™ mode control for super fast transient, selectable auto-skip and PWM operation, internal soft-start control, adjustable frequency, and no need for compensation.

The conversion input voltage ranges from 3 V to 15 V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V.

The TPS53315 is available in a 5 mm × 7 mm 40-pin, VQFN package and is specified from –40°C to 85°C.

TPS53315 is a D-CAP™ mode, 12-A synchronous switcher with integrated MOSFETs. It is designed for ease of use, low external component count, and small package power systems.

This device features single-rail input support, one 19-mΩ and one 7-mΩ integrated MOSFET, accurate 1%, 0.6 V Reference, and integrated boost switch. A sample of competitive features include: greater than 96% maximum efficiency, 3 V to 15 V wide input voltage range, very low external component count, D-CAP™ mode control for super fast transient, selectable auto-skip and PWM operation, internal soft-start control, adjustable frequency, and no need for compensation.

The conversion input voltage ranges from 3 V to 15 V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V.

The TPS53315 is available in a 5 mm × 7 mm 40-pin, VQFN package and is specified from –40°C to 85°C.

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Technical documentation

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Type Title Date
* Data sheet TPS53315 12-A Step-Down Regulator with Integrated Switcher datasheet (Rev. A) 28 Dec 2015
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
Technical article Good pin practices with buck converters 31 May 2017
Application note Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev 25 Jan 2017
Application note D-CAP(TM) Mode With All-Ceramic Output Capacitor Application 03 Feb 2011
Application note Intel EP80579 Tolopai System-on-Chip Reference Design 21 Jul 2010

Design & development

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Simulation model

TPS53315 PSpice Transient Model (Rev. B)

SLVMAI4B.ZIP (132 KB) - PSpice Model
Simulation model

TPS53315 TINA-TI Transient Reference Design

SLVMAM6.TSC (156 KB) - TINA-TI Reference Design
Simulation model

TPS53315 TINA-TI Transient Model

SLVMAM7.ZIP (62 KB) - TINA-TI Spice Model
Simulation tool

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
VQFN (RGF) 40 View options

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