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Product details

Parameters

Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Vout (Min) (V) 0.6 Vout (Max) (V) 5.2 Iout (Max) (A) 1.5 Iq (Typ) (mA) 0.05 Iq (Typ) (uA) 50 Switching frequency (Min) (kHz) 1500 Switching frequency (Max) (kHz) 1500 Features Enable, Light Load Efficiency, Power Good, Synchronous Rectification Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Buck converters (integrated switch)

Features

  • 2.7-V to 5.5-V Input Voltage Range
  • 1.5-MHz Typical Switching Frequency
  • Output Current up to 1.5 A (Max)
  • Adaptive On-Time Current Control
  • Power Save Mode for Light Load Efficiency
  • 50-µA Operating Quiescent Current
  • Up to 95% Efficiency
  • Over Current Protection
  • 95% Maximum Duty Cycle
  • Excellent AC and Transient Load Response
  • Power Good Output, TLV62566
  • Internal Soft Startup of 250 µs (Typ)
  • Adjustable Output Voltage
  • Thermal Shutdown Protection
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Description

The TLV62565/6 devices are synchronous step-down converters optimized for small solution size and high efficiency. The devices integrate switches capable of delivering an output current up to 1.5 A.

The devices are based on an adaptive on time with valley current mode control scheme. Typical operating frequency is 1.5 MHz at medium to heavy loads. The devices are optimized to achieve very low output voltage ripple even with small external components and feature an excellent load transient response.

During light load, the TLV62565/6 automatically enter into Power Save Mode at the lowest quiescent current (50 µA typ) to maintain high efficiency over the entire load current range. In shutdown, the current consumption is reduced to less than 1 µA.

The TLV62565/6 provide an adjustable output voltage via an external resistor divider. The output voltage start-up ramp is controlled by an internal soft start, typically 250 µs. Power sequencing is possible by configuring the Enable (TLV62565) and Power Good (TLV62566) pins. Other features like over current protection and over temperature protection are built-in. The TLV62565/6 devices are available in a SOT-23 5-pin package.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TLV6256x 1.5-A High Efficiency Step-Down Converters in SOT-23 5-Pin Package datasheet (Rev. D) Oct. 05, 2016
Application notes Methods of output-voltage adjustment for DC/DC converters Jun. 14, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application notes Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Application notes Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application notes Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application notes Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Technical articles KISS Your Problems Goodbye! Nov. 25, 2013
User guides TLV62566-PWR232 User's Guide Oct. 16, 2013

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description

This EVM is designed to help the user easily evaluate and test the operation and functionality of the TLV62566. The EVM converts a 2.7-V to 5.5-V input voltage to a regulated 1.8-V output voltage that delivers 1.5A. This user’s guide includes setup instructions for the hardware (...)

Features
  • EVM Input Voltage Range: 2.7V to 5.5V
  • EVM Output Voltage: 1.8V
  • 1.5A Output Current
  • Power Good Indicator

Design tools & simulation

SIMULATION MODELS Download
SLVMAD2A.ZIP (37 KB) - PSpice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
GERBER FILES Download
SLVC780.ZIP (138 KB)

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

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