ZCC2139 ULTRA-SMALL PACKAGE PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR

PublishTime：2021-12-28

The ZCC2139 series is a CMOS step-up switching regulator which mainly consists of a reference voltage source, an oscillation circuit, an error amplifier, a phase compensation circuit, a PWM/PFM switching control circuit. With an external low-ON-resistance Nch Power MOS, this product is applicable to applications requiring high efficiency and high output current. The ZCC2139 series switches its operation to the PFM control circuit whose duty ratio is 15 % with to the PWM/PFM switching control circuit under a light load and to prevent decline in the efficiency by IC operation current.
Feature
■Low voltage operation: Start-up is guaranteed from 0.9 V(IOUT=1 mA )
■Duty ratio: Built-in PWM/PFM switching control circuit 15 to 78%.
■oscillator frequency：1.0MHz
■External parts: coil, diode, capacitor, and transistor
■Output voltage range: 1.5V~6.5 V
■Output voltage accuracy：±2%
■Soft start function: 2 mS.
■PACKAGE：SOT23-5

Brand of Product：	ZCC
Part#：	ZCC2139 、 ZCC2139XXXXX 、 ZCC2139F More Part#
Product Category：	ULTRA-SMALL PACKAGE PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR 、 CMOS step-up switching regulator More
Application：	[ MP3 players ][ digital audio players ][ Digital cameras ][ GPS ][ wireless transceiver ][ Portable devices ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	SOT23-5
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2015/4/14
Version Number：	V1.0
Data Encoding：
Data Size：	899 KB

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