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TPS82740A

ACTIVE

200-mA Step Down Converter Module with 360nA Iq

Product details

Iout (max) (A) 0.2 Vin (min) (V) 2.2 Vin (max) (V) 5.5 Vout (min) (V) 1.8 Vout (max) (V) 2.5 Soft start Fixed EMI features Integrated capacitors Features Dynamic Voltage Scaling, EMI Tested, Enable, Integrated Switch, Light Load Efficiency, Load Disconnect, Output discharge, Overcurrent protection Operating temperature range (°C) -40 to 85 Iq (typ) (mA) 0.00036 Regulated outputs (#) 1 Switching frequency (max) (kHz) 1700 Switching frequency (min) (kHz) 700 Duty cycle (max) (%) 100 Topology Buck, Synchronous Buck Type Module Rating Catalog Control mode Constant on-time (COT), DCS-Control
Iout (max) (A) 0.2 Vin (min) (V) 2.2 Vin (max) (V) 5.5 Vout (min) (V) 1.8 Vout (max) (V) 2.5 Soft start Fixed EMI features Integrated capacitors Features Dynamic Voltage Scaling, EMI Tested, Enable, Integrated Switch, Light Load Efficiency, Load Disconnect, Output discharge, Overcurrent protection Operating temperature range (°C) -40 to 85 Iq (typ) (mA) 0.00036 Regulated outputs (#) 1 Switching frequency (max) (kHz) 1700 Switching frequency (min) (kHz) 700 Duty cycle (max) (%) 100 Topology Buck, Synchronous Buck Type Module Rating Catalog Control mode Constant on-time (COT), DCS-Control
uSIP (SIP) 9 7.395 mm² 2.55 x 2.9
  • 360-nA Typical Quiescent Current
  • Up to 90% Efficiency at 10-µA Output Current
  • Pin-Selectable Output Voltages in 100-mV Steps
  • Integrated Slew Rate Controlled Load Switch
  • Up to 200-mA Output Current
  • Input Voltage Range VIN from 2.2 V to 5.5 V
  • RF Friendly DCS-Control™
  • Low Output Voltage Ripple
  • Automatic Transition to No Ripple 100% Mode
  • Discharge Function on VOUT and LOAD
  • Sub 1.1-mm Profile Solution
  • Total Solution Size < 6.7mm2
  • Small 2.3 mm × 2.9 mm MicroSIP™ Package
  • 360-nA Typical Quiescent Current
  • Up to 90% Efficiency at 10-µA Output Current
  • Pin-Selectable Output Voltages in 100-mV Steps
  • Integrated Slew Rate Controlled Load Switch
  • Up to 200-mA Output Current
  • Input Voltage Range VIN from 2.2 V to 5.5 V
  • RF Friendly DCS-Control™
  • Low Output Voltage Ripple
  • Automatic Transition to No Ripple 100% Mode
  • Discharge Function on VOUT and LOAD
  • Sub 1.1-mm Profile Solution
  • Total Solution Size < 6.7mm2
  • Small 2.3 mm × 2.9 mm MicroSIP™ Package

The TPS82740 is the industry’s first step-down converter module featuring typically 360-nA quiescent current consumption. It is a complete MicroSIPTM DC/DC step-down power solution intended for ultra low-power applications. The module includes the switching regulator, inductor and input/output capacitors. The integration of all required passive components enables a tiny solution size of only 6.7 mm2.

This new DCS-Control™ based device extends the light load efficiency range below 10-µA load currents. It supports output currents up to 200 mA.

The device operates from rechargeable Li-Ion batteries, Li-primary battery chemistries such as Li-SOCl2, Li-MnO2 and two or three cell alkaline batteries. The input voltage range up to 5.5 V also allows operation from an USB port and thin-film solar modules.

The output voltage is user selectable by three voltage select pins (VSEL), within a range from 1.8 V to 2.5 V (TPS82740A) and 2.6 V to 3.3 V (TPS82740B) in 100-mV steps. The TPS82740 features low output voltage ripple and low noise. Once the battery voltage comes close to the output voltage (close to 100% duty cycle), the device enters no ripple 100% mode operation preventing an increase of output voltage ripple. In this case the device stops switching and the output is connected to the input voltage.

The integrated slew rate controlled load switch with a typical ON-resistance of 0.6Ω distributes the selected output voltage to a temporarily used sub-system.

The TPS82740 is available in a small 9-bump 6.7 mm2 MicroSiP™ package.

The TPS82740 is the industry’s first step-down converter module featuring typically 360-nA quiescent current consumption. It is a complete MicroSIPTM DC/DC step-down power solution intended for ultra low-power applications. The module includes the switching regulator, inductor and input/output capacitors. The integration of all required passive components enables a tiny solution size of only 6.7 mm2.

This new DCS-Control™ based device extends the light load efficiency range below 10-µA load currents. It supports output currents up to 200 mA.

The device operates from rechargeable Li-Ion batteries, Li-primary battery chemistries such as Li-SOCl2, Li-MnO2 and two or three cell alkaline batteries. The input voltage range up to 5.5 V also allows operation from an USB port and thin-film solar modules.

The output voltage is user selectable by three voltage select pins (VSEL), within a range from 1.8 V to 2.5 V (TPS82740A) and 2.6 V to 3.3 V (TPS82740B) in 100-mV steps. The TPS82740 features low output voltage ripple and low noise. Once the battery voltage comes close to the output voltage (close to 100% duty cycle), the device enters no ripple 100% mode operation preventing an increase of output voltage ripple. In this case the device stops switching and the output is connected to the input voltage.

The integrated slew rate controlled load switch with a typical ON-resistance of 0.6Ω distributes the selected output voltage to a temporarily used sub-system.

The TPS82740 is available in a small 9-bump 6.7 mm2 MicroSiP™ package.

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Technical documentation

Design & development

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

Evaluation board

TPS82740AEVM-617 — Evaluation Module for TPS82740ASIP Ultra Low Iq, Fully Integrated Step-Down Converter

The TPS82740AEVM-617 is designed to help the user easily evaluate and test the operation and functionality of the Fully Integrated TPS82740A Power Module. The EVM converts a 2.2-V to 5.5-V input voltage to a regulated output voltage that is set between 1.8 V and 2.5 V at up to 200 mA. The (...)

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

TPS82740A PSpice Unencrypted Transient Model (Rev. C)

SLVMAB2C.ZIP (127 KB) - PSpice Model
Simulation model

TPS82740A TINA-TI Startup Reference Design (Rev. A)

SLVMAI1A.TSC (122 KB) - TINA-TI Reference Design
Simulation model

TPS82740A TINA-TI Steady State Reference Design (Rev. A)

SLVMAI2A.TSC (128 KB) - TINA-TI Reference Design
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

TIDA-010055 — Non-isolated power architecture with diagnostics reference design for protection relay modules

This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
uSIP (SIP) 9 View options

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