Product details

Iout (Max) (A) 0.2 Vin (Min) (V) 2.2 Vin (Max) (V) 5.5 Vout (Min) (V) 2.6 Vout (Max) (V) 3.3 Soft start Fixed Features Dynamic Voltage Scaling, EMI Tested, Enable, Light Load Efficiency, Output Discharge, Overcurrent protection Iq (Typ) (uA) 0.36 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 1200 Switching frequency (Min) (kHz) 700 Duty cycle (Max) (%) 100 Topology Buck, Synchronous Buck
Iout (Max) (A) 0.2 Vin (Min) (V) 2.2 Vin (Max) (V) 5.5 Vout (Min) (V) 2.6 Vout (Max) (V) 3.3 Soft start Fixed Features Dynamic Voltage Scaling, EMI Tested, Enable, Light Load Efficiency, Output Discharge, Overcurrent protection Iq (Typ) (uA) 0.36 Regulated outputs (#) 1 Switching frequency (Max) (kHz) 1200 Switching frequency (Min) (kHz) 700 Duty cycle (Max) (%) 100 Topology Buck, Synchronous Buck
  • 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 (...)

Not available on TI.com
Evaluation board

TPS82740BEVM-617 — Step Down Converter MicroSiP Module with quiescent current Evaluation Module

The TPS82740BEVM-617 is designed to help the user easily evaluate and test the operation and functionality of the Fully Integrated TPS82740B Power Module. The EVM converts a 2.2-V to 5.5-V input voltage to a regulated output voltage that is set between 2.6 V and 3.3 V at up to 200 mA. The (...)

Not available on TI.com
Simulation model

TPS82740B Unencrypted PSpice Transient Model Package (Rev. B) TPS82740B Unencrypted PSpice Transient Model Package (Rev. B)

Simulation model

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

Simulation model

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

Simulation model

TPS82740B TINA-TI Startup Transient Model TPS82740B TINA-TI Startup Transient Model

Simulation model

TPS82740B TINA-TI Steady State Transient Model TPS82740B TINA-TI Steady State Transient Model

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 (...)
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