800-mA, 3-MHz High-Efficiency Step-Down Converter, TPS6269x


Product details


Vin (Min) (V) 2.3 Vin (Max) (V) 4.8 Vout (Min) (V) 2.85 Vout (Max) (V) 2.85 Iout (Max) (A) 0.8 Iq (Typ) (uA) 19 Switching frequency (Min) (kHz) 2700 Switching frequency (Max) (kHz) 3000 Features Enable, Forced PWM, Light Load Efficiency, Output Discharge, Spread Spectrum Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

DSBGA (YFD) 6 1 mm² 1.34 x .966 open-in-new Find other Buck converters (integrated switch)


  • 95% Efficiency at 3MHz Operation
  • 21 µA Quiescent Current
  • 3 MHz Regulated Frequency Operation
  • Spread Spectrum, PWM Frequency Dithering
  • High Duty-Cycle Operation
  • ±2% Total DC Voltage Accuracy
  • Load and Line Transient
  • Excellent AC Load Regulation
  • Low Ripple Light-Load PFM Mode
  • ≥40 dB VIN PSRR (1 kHz to 10 kHz)
  • Internal Soft Start, 350-μs Start-Up Time
  • Integrated Active Power-Down Sequencing (Optional)
  • Current Overload and Thermal Shutdown Protection
  • Three Surface-Mount External Components Required
    (One 2012 MLCC Inductor, Two 0402 Ceramic Capacitors)
  • Complete Sub 1-mm Component Profile Solution
  • Total Solution Size <12 mm2 (CSP)
  • Available in a 6-Pin NanoFree (CSP)
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The TPS62693 device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS62693 supports up to 800-mA load current, and allows the use of low cost chip inductor and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery. Different fixed output voltage versions are available in the range from 2.2 V up to 3.3 V.

The TPS62693 operates at a regulated 3-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 21 µA (typical) during light load operation. For noise-sensitive applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. This feature, 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

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 9
Type Title Date
* Datasheet 800-mA, 3-MHz High-Efficiency Step-Down Converter, TPS6269x datasheet Jun. 16, 2011
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application note Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Application note Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application note Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) Aug. 17, 2015
Application note Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
User guide TPS6269xEVM-076 Evaluation Module (Rev. A) Oct. 26, 2011

Design & development

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Hardware development

document-generic User guide

Efficiency VIN Step Down Converter Evaluation Module Board

Demonstrate TPS62690/1/2/3 high efficiency VIN step down converter.

Output Voltage is fixed. The current can go up to 600mA for TPS62691 and 500mA for TPS62690 and 800mA for the TPS62692 and TPS62693.

Design tools & simulation

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  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
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  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
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SLVC551.ZIP (501 KB)

CAD/CAE symbols

Package Pins Download
DSBGA (YFD) 6 View options

Ordering & quality

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