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LTC3520 - Synchronous 1A Buck-Boost and 600mA Buck Converters

General Description

The LTC®3520 combines 1A buck-boost and 600mA synchronous buck DC/DC converters in a tiny 4mm × 4mm package.

A programmable switching frequency allows the efficiency to be optimized while minimizing the solution footprint.

Both converters feature soft-start and current limit protection.

Key Features

  • n Dual High Efficiency DC/DC Converters: Buck-Boost (VOUT: 2.2V to 5.25V, IOUT = 1A at VOUT = 3.3V, VIN ≥ 3V) Buck (VOUT: 0.8V to VIN, IOUT = 600mA) n 2.2V to 5.5V Input Voltage Range n Pin-Selectable Burst Mode® Operation n Uncommitted Gain Block for LDO Controller, Battery Good Indication or Sequencing n Programmable 100kHz to 2MHz Switching Frequency n 55μA Total Quiescent Current for Both Converters in Burst Mode Operation n Thermal and Overcurrent Protection n.

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Other Datasheets by Linear Technology (now Analog Devices)

Part Number Description
LTC3521 1A Buck-Boost DC/DC And Dual 600mA Buck DC/DC Converters
LTC3522 Synchronous 400mA Buck-Boost and 200mA Buck Converters
LTC3526 500mA 1MHz Synchronous Step-Up DC/DC Converters
LTC3526-2 500mA 2MHz Synchronous Step-Up DC/DC Converters
LTC3526B 500mA 1MHz Synchronous Step-Up DC/DC Converters

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LTC3520 Synchronous 1A Buck-Boost and 600mA Buck Converters FEATURES n Dual High Efficiency DC/DC Converters: Buck-Boost (VOUT: 2.2V to 5.25V, IOUT = 1A at VOUT = 3.3V, VIN ≥ 3V) Buck (VOUT: 0.8V to VIN, IOUT = 600mA) n 2.2V to 5.