LTC3445 I2C Controllable Buck Regulator

Linear Technology

Description

U U LTC3445 I2C Controllable Buck Regulator with Two LDOs in a 4mm × 4mm QFN .

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Datasheet Specifications

Part number: LTC3445
Manufacturer: Linear Technology
File Size: 475.08 KB
Datasheet: LTC3445_LinearTechnology.pdf
Description: I2C Controllable Buck Regulator

Features

* Buck Regulator
* High Efficiency: Up to 93%
* 600mA Output Current (VCC1 = 3V, VOUT = 1.3V)
* Programmable Output Voltage: 0.85V to 1.55V
* 2.5V to 5.5V Input Voltage Range
* 1.5MHz Constant Frequency or Spread Spectrum Option
* Soft-Start LDOs
* Two LDO Regulators: 0.3V

Applications

* Automatic Burst Mode® operation increases efficiency at light loads, further extending battery life. TYPICAL APPLICATIO VCC 4.7µF CER 3V COIN + VBACKUP CELL PWR_EN I2C BUS VCC 20k nVCC_FAULT VCC1 OR GND VCC1 OR GND VCC1 VCC2 VCC1 VTRACK VBACKUP BATTFAULT VCC BATT RUN SW SDA FB LT

LTC3445 Distributors

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I2C Controllable Buck Regulator Linear Technology

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