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BD9329AEFJ PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BD9329AEFJ
기능 Synchronous Buck Converter
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BD9329AEFJ 데이터시트, 핀배열, 회로
Datasheet
4.2V to 18V, 3A 1ch
Synchronous Buck Converter with
Integrated FET
BD9329AEFJ
General Description
The BD9329AEFJ is a synchronous step-down
switching regulator with built-in two low-resistance
N-Channel MOSFETs. This IC can supply continuous
output current of 3A over a wide input range, and
provides not only fast transient response, but also easy
phase compensation because of current mode control.
Features
Uses Low ESR Output Ceramic Capacitors
Low Standby Current
380 kHz Fixed Operating Frequency
Feedback Voltage
0.9V ± 1.5%(Ta=25°C)
0.9V ± 2.0%(Ta=-25°C to +85°C)
Under Voltage Protection
Thermal Shutdown
Over Current Protection
Key Specifications
Input Voltage Range:
Output Voltage Range:
Output Current:
Switching Frequency
Hi-Side FET ON-Resistance:
Lo-Side FET ON-Resistance:
Standby Current:
Operating Temperature Range:
4.2V to 18V
0.9V to (VIN x 0.7)V
3.0A (Max)
380kHz(Typ)
0.15Ω(Typ)
0.13Ω(Typ)
15μA (Typ)
-40°C to +85°C
Package
W(Typ) D(Typ) H(Max)
Applications
Distributed Power Systems
Pre-Regulator for Linear Regulators
Typical Application Circuit
C_SS
0.1μF
C_PC
3300pF
R_PC
7.5kΩ
HTSOP-J8
4.90mm x 6.00mm x 1.00mm
R_DW
10kΩ
R_UP
27kΩ
Thermal Pad
(to be shorted to GND)
VIN = 12V
C_VC1
10μF
L
10µH
VOUT = 3.3V
C_CO1
20μF
R_BS protects from VIN-BST short destruction.
Figure 1. Typical Application Circuit
Product structure : Silicon monolithic integrated circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has no designed protection against radioactive rays
1/19
TSZ02201-0323AAJ00010-1-2
16.Feb.2015 Rev.003




BD9329AEFJ pdf, 반도체, 판매, 대치품
BD9329AEFJ
Typical Performance Curves
(Unless otherwise specified, VIN= 12V Ta = 25°C)
VIN [V]
Figure 4. Circuit Current vs Input Voltage
(No Switching)
VIN [V]
Figure 5. Standby Current vs Input Voltage
(Shutdown Mode)
VFB [V]
Figure 6. Input Bias Current vs
Feedback Voltage
Temp [°C]
Figure 7. Feedback Voltage vs
Temperature
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
4/19
TSZ02201-0323AAJ00010-1-2
16.Feb.2015 Rev.003

4페이지










BD9329AEFJ 전자부품, 판매, 대치품
BD9329AEFJ
Typical Waveforms - continued
tSS
Figure 16. Output Ripple Voltage
(VIN= 12V, VOUT= 3.3V, L= 10µH, COUT =22µF, IOUT=3.0A)
Figure 17. Start-Up Waveform
(VIN= 12V, VOUT= 3.3V, L= 10µH, CSS= 0.1µF)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
7/19
TSZ02201-0323AAJ00010-1-2
16.Feb.2015 Rev.003

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전력 반도체 판매 ( IGBT, TR 모듈, SCR, 다이오드 모듈 )

휴대전화 : 010-3582-2743


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부품번호상세설명 및 기능제조사
BD9329AEFJ

Synchronous Buck Converter

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