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TLV62566

ACTIVE

1.5A Buck Converter with Power Good, in SOT23 Package

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Data sheet

TLV62566

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 1.5 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1500 Switching frequency (max) (kHz) 1500 Features Enable, Light load efficiency, Power good, Synchronous Rectification Control mode Constant on-time (COT) Vout (min) (V) 0.6 Vout (max) (V) 5.2 Iq (typ) (µA) 50 Duty cycle (max) (%) 95
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 1.5 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1500 Switching frequency (max) (kHz) 1500 Features Enable, Light load efficiency, Power good, Synchronous Rectification Control mode Constant on-time (COT) Vout (min) (V) 0.6 Vout (max) (V) 5.2 Iq (typ) (µA) 50 Duty cycle (max) (%) 95
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 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
    • Portable Devices
    • DSL Modems
    • Hard Disk Drivers
    • Set Top Box
    • Tablet

All trademarks are the property of their respective owners.
  • 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
    • Portable Devices
    • DSL Modems
    • Hard Disk Drivers
    • Set Top Box
    • Tablet

All trademarks are the property of their respective owners.

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.

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

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Type Title Date
* Data sheet TLV6256x 1.5-A High Efficiency Step-Down Converters in SOT-23 5-Pin Package datasheet (Rev. D) PDF | HTML 05 Oct 2016
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 Jun 2019
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
User guide TLV62566-PWR232 User's Guide 16 Oct 2013

Design & development

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

Evaluation board

TLV62566EVM-232 — TLV62566EVM-232 1.5A High Efficiency Step Down (Buck) Converter Evaluation Module

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, (...)

User guide: PDF
Not available on TI.com
Simulation model

TLV62566 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAD2A.ZIP (37 KB) - PSpice Model
Download
Calculation tool

SLVC780 — Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
Supported products & hardware

Supported products & hardware

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Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN TPS62140 — 3–17V 2A Step-Down Converter with DCS-Control in 3x3 QFN package TPS62140A — 3–17V 2A Step-Down Converter with DCS-Control in 3x3 QFN package TPS62147 — 3-17V 2.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN TPS62148 — 3-17V 2.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN TPS62150 — 3–17V 1A Step-Down Converter with DCS-Control in 3x3 QFN package TPS62150A — 3-17V 1A 3MHz Step-Down Converter with DCS-Control in 3x3 QFN Package TPS62150A-Q1 — TPS62150A-Q1 3 to 17-V 1-A AUTOMOTIVE Step-Down Converter in 3 × 3 QFN Package TPS62160 — 3V-17V 1A Step-Down Converters with DCS-Control™ TPS62160-Q1 — 3V-17V 1A Automotive Step-Down Converters in 2x2SON TPS62170 — 3–17V 0.5A Step-Down Converter with DCS-Control in 2x2 QFN package TPS62170-Q1 — 3-17V 0.5A Automotive Step-Down Converter in 2x2 QFN package TPS62175 — 28V, 0.5A Step-Down Converter with SNOOZE Mode TPS62180 — 4-V 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Soft-start and Optional TPS62510 — Adjustable, 96% Efficiency, 1.5A Buck Converter for low input voltages TPS62560 — 2.25MHz 600mA Step-Down Converter in 2x2mm SON Package TPS62561 — 2.25MHz 600mA Step-Down Converter in TSOT23 Package TPS62590 — 2.25MHz, 1A Step-Down Converter in 2 x 2 SON Package TPS62590-Q1 — Automotive 2.5V to 6V, 2.25MHz Fixed Frequency 1A Buck Converter in 2x2mm SON Package TPS62750 — 2.25MHz, Step-Down Converter w/ Programmable Input Current Limits for USB powered Applications TPS62751 — 2.25MHz, Step-Down Converter w/ Programmble Input Current Limits for USB powered Applications TPS62770 — Tiny Single-chip Dual Solution with 360nA Iq Buck and up to 15V Boost in WCSP TPS62810-Q1 — Automotive 2.75-V to 6-V, 4-A step-down converter in a 2mm x 3mm wettable-flanks QFN package TPS62810M — 2.75-V to 6-V, 4-A step-down converter in a 2-mm x 3-mm QFN package with -55C extended temperature TPS62821 — 2.4-V to 5.5-V input, 1-A step-down converter with 1% accuracy in 1.5-mm x 2-mm VSON-HR package TPS62822 — 2.4-V to 5.5-V input, 2-A step-down converter with 1% accuracy in 1.5-mm x 2-mm VSON-HR package TPS62823 — 2.4-V to 5.5-V input, 3-A step-down converter with 1% accuracy in 1.5-mm x 2-mm VSON-HR package TPS62825 — 2.4-V to 5.5-V input, 2-A step-down converter with 1% accuracy in 1.5-mm x 1.5-mm QFN TPS62826 — 2.4-V-5.5-V input, 3-A step-down converter with 1% accuracy in 1.5-mm x 1.5-mm VSON-HR package TPS62827 — 2.5-V to 5.5-V input, 4-A step-down converter with 1% accuracy in 1.5-mm x 1.5-mm QFN
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SOT-23 (DBV) 5 Ultra Librarian
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