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BL8529 데이터시트 PDF




SHANGHAI BELLING에서 제조한 전자 부품 BL8529은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 BL8529 자료 제공

부품번호 BL8529 기능
기능 3A 1.5MHz 5.5V Synchronous Buck Converter
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BL8529 데이터시트, 핀배열, 회로
BL8529
3A 1.5MHz 5.5V Synchronous Buck Converter
DESCRIPTION
The BL8529 is a high efficiency synchronous, buck
DC/DC converter. Its input voltage range is from
2.6V to 6V and provides an adjustable regulated
output voltage from 0.8V to 5.5V while delivering
up to 3A of output current.
The internal synchronous switches increase
efficiency and eliminate the need for an external
Schottky diode. The switching frequency is set by
an external resistor or can be synchronized to an
external clock. The 100% duty cycle provides low
dropout operation extending battery life in
portable systems.
The BL8529 is operated in PFM/PWM auto-switch
mode which enhance the efficiency at light-load.
The BL8529 is available in the DFN2x2-8L and
DFN3x3-10L package
FEATURES
Adjustable Output Voltage, Vfb=0.8V
Maximum output current is 3A
Range of operation input voltage: Max 6V
Standby current: 0.5mA (typ.)
Line regulation: 0.1%/V (typ.)
Load regulation: 10mV (typ.)
High efficiency, up to 96%
Environment Temperature: -20°C~85°C
APPLICATIONS
Power Management for 3G modem
3W LED driver from Li-ion battery
LCD Monitor and LCD TV
DVD Decode Board
ADSL Modem
Post Regulators for Switching Supplies
TYPICAL APPLICATION
BL8529
PIN OUT & MARKING
1.EN_
8. COMP
2. GND
7. FB
3. LX 6. VDD
4. PGND
5. PVDD
DFN2x2-8L
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BL8529 pdf, 반도체, 판매, 대치품
TYPICAL PERFORMANCE CHARACTERISTICS cont’
BL8529
Power On & Soft Start
Load Transient Response
CH1: Input Voltage
CH2: Output Voltage
CH3: Switching Wave
CH4: Inductor Current
CH2: Output Ripple
CH1: Load Current
DETAILED DESCRIPTION
BL8529 is a 3A synchronous buck, with frequency adjusted by Ren_. It can achieve conversion efficiency up to 95%. It
also support 100% duty cycle which will maximize the battery usage. Only a inductor and a few R & C need for peripheral.
The PCB size can be very small
Please note that EN_ pin has to be pull high if one wants to shutdown the chip. And release it (with a Ren_ connected to
GND) to have it work. One can also switch off BL8529 by connect enable signal with at least 1mA driving capability to
VDD pin (pin 6 of DFN2x2 and pin 8 of DFN3x3 package).
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일반 IC 문의 : 샘플 및 소량 구매
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