Product details

Vin (Min) (V) 3 Vin (Max) (V) 17 Vout (Min) (V) 0.8 Vout (Max) (V) 12 Iout (Max) (A) 2 Iq (Typ) (uA) 18 Switching frequency (Min) (kHz) 1250 Switching frequency (Max) (kHz) 2500 Features Enable, Forced PWM, Light Load Efficiency, Output Discharge, Over Current Protection, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Adjustable Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
Vin (Min) (V) 3 Vin (Max) (V) 17 Vout (Min) (V) 0.8 Vout (Max) (V) 12 Iout (Max) (A) 2 Iq (Typ) (uA) 18 Switching frequency (Min) (kHz) 1250 Switching frequency (Max) (kHz) 2500 Features Enable, Forced PWM, Light Load Efficiency, Output Discharge, Over Current Protection, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Adjustable Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
VQFN-HR (RGX) 11 6 mm² 3 x 2
  • Output Voltage Accuracy ± 1% over specified TJ range (PWM mode)
  • Input Voltage Range: 3 V to 17 V
  • Quiescent Current 18 µA Typical
  • Output Voltage from 0.8 V to 12 V
  • Adjustable Soft-Start
  • Forced PWM or PWM/PFM operation
  • Switching frequency of 1.25MHz or 2.5 MHz in forced PWM
  • Precise ENABLE input allows
    • User-Defined Undervoltage Lockout
    • Exact Sequencing
  • 100% Duty Cycle Mode
  • Automatic Efficiency Enhancement AEE™
  • DCS-Control™ Topology
  • Active Output Discharge (TPS62148)
  • HICCUP Overcurrent Protection (TPS62147)
  • Power Good Output
  • Available in 2-mm × 3-mm VQFN Package
  • Output Voltage Accuracy ± 1% over specified TJ range (PWM mode)
  • Input Voltage Range: 3 V to 17 V
  • Quiescent Current 18 µA Typical
  • Output Voltage from 0.8 V to 12 V
  • Adjustable Soft-Start
  • Forced PWM or PWM/PFM operation
  • Switching frequency of 1.25MHz or 2.5 MHz in forced PWM
  • Precise ENABLE input allows
    • User-Defined Undervoltage Lockout
    • Exact Sequencing
  • 100% Duty Cycle Mode
  • Automatic Efficiency Enhancement AEE™
  • DCS-Control™ Topology
  • Active Output Discharge (TPS62148)
  • HICCUP Overcurrent Protection (TPS62147)
  • Power Good Output
  • Available in 2-mm × 3-mm VQFN Package

The TPS62147 and TPS62148 are high efficiency and easy-to-use synchronous step-down DC/DC converters, based on the DCS-Control™ Topology. The wide input voltage range of 3-V to 17-V make them suitable for multi-cell Li-Ion as well as 12-V intermediate supply rails. The devices provide 2-A continuous output current. They automatically enter Power Save Mode at light loads to maintain high efficiency across the whole load range. With that, they are well suited for applications that require connected standby performance, like industrial PC and video surveillance. With the MODE pin set to low, the switching frequency is adapted automatically based on the output current and also on input and output voltage. This technique is called Automatic Efficiency Enhancement (AEE™) and maintains high conversion efficiency over the whole operation range. TPS62147, TPS62148 provide a 1% output voltage accuracy in PWM mode and therefore enable the design of a power supply with high output voltage accuracy. The FSEL pin allows to set a switching frequency in forced PWM mode of 1.25 MHz or 2.5 MHz, respectively.

The typical quiescent current is 18 µA. In shutdown mode the current is typically 1 µA.

The devices are available as an adjustable version, packaged in a 3-mm × 2-mm VQFN package.

The TPS62147 and TPS62148 are high efficiency and easy-to-use synchronous step-down DC/DC converters, based on the DCS-Control™ Topology. The wide input voltage range of 3-V to 17-V make them suitable for multi-cell Li-Ion as well as 12-V intermediate supply rails. The devices provide 2-A continuous output current. They automatically enter Power Save Mode at light loads to maintain high efficiency across the whole load range. With that, they are well suited for applications that require connected standby performance, like industrial PC and video surveillance. With the MODE pin set to low, the switching frequency is adapted automatically based on the output current and also on input and output voltage. This technique is called Automatic Efficiency Enhancement (AEE™) and maintains high conversion efficiency over the whole operation range. TPS62147, TPS62148 provide a 1% output voltage accuracy in PWM mode and therefore enable the design of a power supply with high output voltage accuracy. The FSEL pin allows to set a switching frequency in forced PWM mode of 1.25 MHz or 2.5 MHz, respectively.

The typical quiescent current is 18 µA. In shutdown mode the current is typically 1 µA.

The devices are available as an adjustable version, packaged in a 3-mm × 2-mm VQFN package.

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Technical documentation

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Type Title Date
* Data sheet TPS62147, TPS62148 High Accuracy 3-V to 17-V 2-A Step-Down Converter With DCS-Control datasheet 21 Sep 2016
Application note Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) 08 Jan 2020
Analog design journal Methods of output-voltage adjustment for DC/DC converters 14 Jun 2019
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
Application note Supercap last gasp failsafe power for RF comunications in E-Meters 27 Jan 2019
Analog design journal Understanding 100% mode in low-power DC/DC converters 22 Jun 2018
Technical article Output accuracy varies with temperature – 1% is not always 1% 02 May 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS62148EVM-034 — 17-V Input, 2-A Output, Step-Down Converters with fSEL functionality Evaluation Module

The TPS62148EVM-034 is designed to help the user easily evaluate and test the operation and functionality of the TPS62148 DC/DC converter. The EVM converts a 3-V to 17-V input voltage to a regulated output voltage of 3.3V at up to 2A output current. The TPS62148 operates with a nominal switching (...)

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Simulation model

TPS62147 PSpice Unencrypted Transient Model (Rev. B)

SLVMCO3B.ZIP (112 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Reference designs

PMP30528 — Supercapacitor backup power supply for E-Meters reference design

This reference design automatically provides back-up voltages to an E-Meter during a power interruption. While the input voltage is between 10 V to 12 V, two buck controllers (TPS62147, TPS62173) generate 3.9 V at 2 A and 5 V at 150 mA. An optional synchronous boost generates 3.3 V at 50 mA. A (...)
Package Pins Download
VQFN-HR (RGX) 11 View options

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