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BD9328EFJ PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BD9328EFJ
기능 Synchronous Buck Converter
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BD9328EFJ 데이터시트, 핀배열, 회로
Datasheet
4.2V to 18V, 2A 1ch
Synchronous Buck Converter with
Integrated FET
BD9328EFJ
General Description
The BD9328EFJ is a synchronous step-down
switching regulator with built-in two low-resistance
N-Channel MOSFETs. This IC can supply continuous
output current of 2A 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:
4.2V to 18V
Output Voltage Range:
0.9V to (VIN x 0.7)V
Output Current:
2A (Max)
Switching Frequency:
380kHz(Typ)
Hi-Side FET ON-Resistance:
0.15(Typ)
Lo-Side FET ON-Resistance:
0.13(Typ)
Standby Current:
15μA (Typ)
Operating Temperature Range: -40°C to +85°C
Package
W (Typ) D (Typ) H (Max)
Applications
Distributed Power Systems
Pre-Regulator for Linear Regulators
HTSOP-J8
4.90mm x 6.00mm x 1.00mm
Typical Application Circuit
C_SS
0.1μF
C_PC
3300pF
R_PC
7.5k
R_DW
10k
R_UP
27k
Thermal Pad
(to be shorted to GND)
VIN = 12V
C_VC1
10μF
L
10µH
VOUT = 3.3V
C_CO1
20μF
Figure 1. Typical Application Circuit
R_BS protect from VIN-BST short destruction.
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
TSZ02201-0323AAJ00020-1-2
16.Feb.2015 Rev.003




BD9328EFJ pdf, 반도체, 판매, 대치품
BD9328EFJ
Typical Performance Curves
(Unless otherwise specified, VIN= 12V Ta= 25°C)
Datasheet
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
Temperature [°C]
Figure 7. Feedback Voltage vs Temperature
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
4/19
TSZ02201-0323AAJ00020-1-2
16.Feb.2015 Rev.003

4페이지










BD9328EFJ 전자부품, 판매, 대치품
BD9328EFJ
Typical Waveforms - continued
Datasheet
tSS
Figure 16. Output Ripple Voltage
(VIN= 12V VOUT= 3.3V L= 10µH COUT =20µF IOUT= 2.0A )
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
TSZ02201-0323AAJ00020-1-2
16.Feb.2015 Rev.003

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

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부품번호상세설명 및 기능제조사
BD9328EFJ

Synchronous Buck Converter

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