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TPS626751

ACTIVE

500-mA, 6-MHz High-Efficiency Step-Down Converter, Vout=1.2V

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Data sheet

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TPS62801 ACTIVE 1.75-V to 5.5-V input, 1-A ultra-low IQ step-down converter in 0.7-mm x 1.05-mm chip scale package Lower Iq of 2.3 uA, smaller solution size and broader output voltage range (0.8 V to 1.55 V)

TPS626751

ACTIVE
Data sheet Order now

Product details

Iout (max) (A) 0.6 Vin (min) (V) 2.3 Vin (max) (V) 4.8 Type Converter Switching frequency (min) (kHz) 5400 Switching frequency (max) (kHz) 6600 Features Enable, Forced PWM, Light load efficiency, Output discharge, Spread Spectrum, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.2 Vout (max) (V) 1.2 Rating Catalog Operating temperature range (°C) -40 to 85
Iout (max) (A) 0.6 Vin (min) (V) 2.3 Vin (max) (V) 4.8 Type Converter Switching frequency (min) (kHz) 5400 Switching frequency (max) (kHz) 6600 Features Enable, Forced PWM, Light load efficiency, Output discharge, Spread Spectrum, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.2 Vout (max) (V) 1.2 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFD) 6 1.4000000000000001 mm² 1.4000000000000001 x 1
  • 92% Efficiency at 6MHz Operation
  • 17µA Quiescent Current
  • Wide VIN Range From 2.3V to 4.8V
  • 6MHz Regulated Frequency Operation
  • Spread Spectrum, PWM Frequency Dithering
  • Best in Class Load and Line Transient
  • ±2% Total DC Voltage Accuracy
  • Low Ripple Light-Load PFM Mode
  • ≥35dB VIN PSRR (1kHz to 10kHz)
  • Simple Logic Enable Inputs
  • Supports External Clock Presence Detect Enable Input
  • Three Surface-Mount External Components Required (One 0603 MLCC Inductor, Two 0402 Ceramic Capacitors)
  • Complete Sub 0.33-mm Component Profile Solution
  • Total Solution Size <10 mm2
  • Available in a 6-Pin NanoFree™ (CSP) Ultra-Thin Packaging, 0.4 mm Max. Height
  • 92% Efficiency at 6MHz Operation
  • 17µA Quiescent Current
  • Wide VIN Range From 2.3V to 4.8V
  • 6MHz Regulated Frequency Operation
  • Spread Spectrum, PWM Frequency Dithering
  • Best in Class Load and Line Transient
  • ±2% Total DC Voltage Accuracy
  • Low Ripple Light-Load PFM Mode
  • ≥35dB VIN PSRR (1kHz to 10kHz)
  • Simple Logic Enable Inputs
  • Supports External Clock Presence Detect Enable Input
  • Three Surface-Mount External Components Required (One 0603 MLCC Inductor, Two 0402 Ceramic Capacitors)
  • Complete Sub 0.33-mm Component Profile Solution
  • Total Solution Size <10 mm2
  • Available in a 6-Pin NanoFree™ (CSP) Ultra-Thin Packaging, 0.4 mm Max. Height

The TPS6267x devices are high-frequency synchronous step-down dc-dc converters optimized for small battery-powered applications. Intended for low-power applications, the TPS6267x supports up to 650-mA load current and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3V to 4.8V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.05V to 2.1V. The TPS6267x operates at a regulated 6-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.

The PFM mode extends the battery life by reducing the quiescent current to 17µA (typ) during light load operation. For noise-sensitive applications, the device has PWM spread spectrum capability providing a lower noise regulated output, as well as low noise at the input. These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.

The TPS6267x devices are high-frequency synchronous step-down dc-dc converters optimized for small battery-powered applications. Intended for low-power applications, the TPS6267x supports up to 650-mA load current and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3V to 4.8V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 1.05V to 2.1V. The TPS6267x operates at a regulated 6-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.

The PFM mode extends the battery life by reducing the quiescent current to 17µA (typ) during light load operation. For noise-sensitive applications, the device has PWM spread spectrum capability providing a lower noise regulated output, as well as low noise at the input. These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.
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Technical documentation

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Type Title Date
* Data sheet TPS6267x 500-mA/650-mA, 6-MHz High-Efficiency Step-Down Converter in Low Profile Chip Scale Packaging (Height < 0.4mm) datasheet (Rev. G) PDF | HTML 17 Jan 2017
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 Jun 2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 Oct 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24 Oct 2016
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015

Design & development

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Simulation model

TPS626751 PSpice Transient Model

SLVMDG2.ZIP (279 KB) - PSpice Model
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DSBGA (YFD) 6 View options
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