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TPS61222-EP
  • TPS61222-EP

TPS61222-EP

ACTIVE

0.7-VIN, 5-V fixed output voltage boost converter with 5.5-μA quiescent current

Texas Instruments TPS61222-EP Product Info

1 April 2026 4

Parameters

Rating

HiRel Enhanced Product

Topology

Boost

Vin (max) (V)

5.5

Vin (min) (V)

0.7

Vout (max) (V)

5.19

Vout (min) (V)

4.8

Switch current limit (typ) (A)

0.4

Features

Synchronous rectification

Operating temperature range (°C)

-55 to 145

Iq (typ) (A)

0.000005

Duty cycle (max) (%)

90

Package

SOT-SC70 (DCK)-6-4.2 mm² 2 x 2.1

Features

  • Up to 95% Efficiency at Typical Operating Conditions
  • 5.5 µA Quiescent Current
  • Startup Into Load at 0.7 V Input Voltage
  • Operating Input Voltage from 0.7 V to 5.5 V
  • Pass-Through Function During Shutdown
  • Minimum Switching Current 200 mA
  • Protections:
    • Output Overvoltage
    • Overtemperature
    • Input Undervoltage Lockout
  • Fixed Output Voltage Versions
  • Small 6-Pin SC-70 Package
  • Up to 95% Efficiency at Typical Operating Conditions
  • 5.5 µA Quiescent Current
  • Startup Into Load at 0.7 V Input Voltage
  • Operating Input Voltage from 0.7 V to 5.5 V
  • Pass-Through Function During Shutdown
  • Minimum Switching Current 200 mA
  • Protections:
    • Output Overvoltage
    • Overtemperature
    • Input Undervoltage Lockout
  • Fixed Output Voltage Versions
  • Small 6-Pin SC-70 Package

Description

The TPS61222 provides a power-supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Possible output currents depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is minimized. The device is offered in a 6-pin SC-70 package (DCK) measuring 2 mm × 2 mm to enable small circuit layout size.

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