UC3550 PWM/PFM SWITCHABLE STEP-UP DC-DC CONTROLLER

UTC

Description

UNISONIC TECHNOLOGIES CO., LTD UC3550 PWM CONTROLLED, PWM/PFM SWITCHABLE STEP-UP DC-DC CONTROLLER * .
The UTC UC3550 series is a compact, high efficiency, step-up DC/DC controllers includes an error amplifier, oscillator, PWM comparator, skip cycle com.

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Datasheet Specifications

Part number: UC3550
Manufacturer: UTC
File Size: 381.32 KB
Datasheet: UC3550_UTC.pdf
Description: PWM/PFM SWITCHABLE STEP-UP DC-DC CONTROLLER

Features

* Input Voltage Range：0.9~8V
* Output Voltage Range：1.8~6V Programmable in 0.1V with High Accuracy ± 2.5%
* High Efficiency 88% (Typ. )
* Low Start-up Voltage of 0.9V Typical at IOUT = 1.0mA
* Oscillator Frequency: 300kHz. (±20%)
* Chip Enable Pin with Pull-up Current Source

Applications

* The UTC UC3550 series goes automatically into skip switching cycles under light load condition to maintain high efficiency. 5

UC3550 Distributors

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UC3550 PWM PFM SWITCHABLE STEP-UP DC-DC CONTROLLER UTC

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