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BL9310

BELLING
Part Number BL9310
Manufacturer BELLING
Description 1A Synchronous Buck Converter
Published Sep 1, 2015
Detailed Description BL9310 1.5 MHz, 1A Synchronous Buck Converter FEATURES • High Efficiency: Up to 96% • 1.5MHz Constant Switching Frequen...
Datasheet PDF File BL9310 PDF File

BL9310
BL9310

Overview
BL9310 1.
5 MHz, 1A Synchronous Buck Converter FEATURES • High Efficiency: Up to 96% • 1.
5MHz Constant Switching Frequency • Current Mode Operation for Excellent Line and Load Transient Response • No Schottky Diode Required • 2.
5V to 5.
5V Input Voltage Range • 1.
0V,1.
2V,1.
5V,1.
8V,2.
5V and 3.
3V Fixed/Adjustable Output Voltage • 100% Duty Cycle in Dropout Mode • Low Quiescent Current: 200µA • Over temperature Protection • Short Circuit Protection • Shutdown Quiescent Current < 1µA • Space Saving 5-Pin Thin SOT23 Package APPLICATIONS • Cellular and Smart Phones • Wireless Handsets and DSL Modems • Microprocessors and DSP Core Supplies • PDAs • Digital Still and Video Cameras • MP3/MP4/MP5 Players ORDERING INFORMATION BL9310 –XX X XXX ：Package TRN: TSOT23-5 RN: SOT23-5 Features: P: Standard (default, lead free) C: Customized ：Output Voltage 10: 1.
0V 12: 1.
2V 15: 1.
5V 18: 1.
8V 25: 2.
5V 33: 3.
3V AD: Adjustable • Portable Instruments • GPS Receivers DESCRIPTION The BL9310 is a constant frequency, 1.
5MHz, slope compensated current mode PWM stepdown converter working under an input voltage range of 2.
5V to 5.
5V.
This feature makes the BL9310 suitable for single cell Liion battery-powered applications.
The internal synchronous rectifier is desired to increase efficiency without an external Schottky diode.
100% duty cycle capability extends battery life in portable devices, while the quiescent current is 200µA at no load, and drops to < 1µA in shutdown.
Pulse Skipping Mode operation increases efficiency at light loads, further extending battery life.
The BL9310 is offered in a low profile (1mm) 5-pin, thin SOT23 package, and is available in an adjustable version and fixed output versions of 1.
0V, 1.
2V, 1.
5V , 1.
8V, 2.
5V and 3.
3V.
TYPICAL APPLICATION Figure 1.
BL9310-ADJ Typical Application Circuit PPMIC BU BL9310 Rev 1.
1 1/2011 www.
belling.
com.
cn Belling Proprietary Information.
Unauthorized Photocopy and Duplication Prohibited ©2011 Belling All Rights Reserved 1 BL9310 1...


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