파트넘버.co.kr BD9A101MUV-LB 데이터시트 PDF


BD9A101MUV-LB 반도체 회로 부품 판매점

Single Synchronous Buck DC/DC Converter



ROHM Semiconductor 로고
ROHM Semiconductor
BD9A101MUV-LB 데이터시트, 핀배열, 회로
Datasheet
2.7V to 5.5V Input, 1A Integrated MOSFET
Single Synchronous Buck DC/DC Converter
BD9A101MUV-LB
General Description
This is the product guarantees long time support in
Industrial market. BD9A101MUV-LB is a synchronous
buck switching regulator with built-in low on-resistance
power MOSFETs. It is capable of providing current up to
1A.The SLLMTM control provides excellent efficiency
characteristics in light-load conditions which make the
product ideal for equipment and devices that demand
minimal standby power consumption. The oscillating
frequency is high at 1MHz using a small value of
inductance. It is a current mode control DC/DC converter
and features high-speed transient response. Phase
compensation can also be set easily.
Key Specifications
Input Voltage Range:
2.7V to 5.5V
Output Voltage Range:
0.8V to VPVIN×0.7V
Average Output Current:
1A(Max)
Switching Frequency:
1MHz(Typ)
High-Side MOSFET On-Resistance: 60m(Typ)
Low-Side MOSFET On-Resistance: 60m(Typ)
Standby Current:
0μA (Typ)
Package
VQFN016V3030
W(Typ) x D(Typ) x H(Max)
3.00mm x 3.00mm x 1.00mm
Features
Long Time Support Product for Industrial Application
Synchronous Single DC/DC Converter.
SLLMTM (Simple Light Load Mode) Control.
Over Current Protection.
Short Circuit Protection.
Thermal Shutdown Protection.
Under Voltage Lockout Protection.
Adjustable Soft start Function.
Power Good Output.
VQFN016V3030 Package (Backside Heat
Dissipation)
VQFN016V3030
Applications
Industrial Equipment,
Step-Down Power Supply for DSPs,
FPGAs, Microprocessors, etc.
Storage Devices (HDDs/SSDs).
Printers, OA Equipment.
Distributed Power Supply, Secondary Power
Supply.
Typical Application Circuit
Figure 1. Application Circuit
Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays
.www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
1/32
TSZ02201-0J3J0AJ00670-1-2
15.Apr.2014 Rev.001


BD9A101MUV-LB 데이터시트, 핀배열, 회로
BD9A101MUV-LB
Pin Configuration
(TOP VIEW)
16 15 14 13
PVIN 1
PVIN 2
PGND 3
PGND 4
E-FPINad
12 SW
11 SW
10 SW
9 SS
5678
Datasheet
Figure 2. Pin Configuration
Pin Descriptions
Pin No.
1, 2
3, 4
5
6
7
8
9
10, 11, 12
13
14
15
16
-
Pin Name
PVIN
PGND
Function
Power supply terminals for the switching regulator.
These terminals supply power to the output stage of the switching regulator.
Connecting a 10µF ceramic capacitor is recommended.
Ground terminals for the output stage of the switching regulator.
AGND
FB
ITH
MODE
SS
SW
BOOT
PGD
EN
AVIN
E-Pad
Ground terminal for the control circuit.
An inverting input node for the gm error amplifier.
See page 23 for how to calculate the resistance of the output voltage setting.
An input terminal for the gm error amplifier output and the output switch current comparator.
Connect a frequency phase compensation component to this terminal.
See page 24 for how to calculate the resistance and capacitance for phase compensation.
Turning this terminal signal Low (0.2V or lower) forces the device to operate in the fixed
frequency PWM mode. Turning this terminal signal High (0.8V or higher) enables the SLLM
control and the mode is automatically switched between the SLLM control and fixed frequency
PWM mode.
Terminal for setting the soft start time. The rise time of the output voltage can be specified by
connecting a capacitor to this terminal. See page 23 for how to calculate the capacitance.
Switch nodes. These terminals are connected to the source of the high-side MOSFET and drain
of the low-side MOSFET. Connect a bootstrap capacitor of 0.1µF between these terminals and
BOOT terminals. In addition, connect an inductor of 2.2µH considering the direct current
superimposition characteristic.
Connect a bootstrap capacitor of 0.1µF between this terminal and SW terminals.
The voltage of this capacitor is the gate drive voltage of the high-side MOSFET.
A “Power Good” terminal, an open drain output. Use of pull up resistor is needed. See page 18
for how to specify the resistance. When the FB terminal voltage reaches within ±7% of 0.8V
(Typ), the internal Nch MOSFET turns off and the output turns High.
Turning this terminal signal low (0.8V or lower) forces the device to enter the shutdown mode.
Turning this terminal signal high (2.0V or higher) enables the device. This terminal must be
terminated.
Supplies power to the control circuit of the switching regulator.
Connecting a 0.1µF ceramic capacitor is recommended.
A backside heat dissipation pad. Connecting to the internal PCB ground plane by using multiple
vias provides excellent heat dissipation characteristics.
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
2/32
TSZ02201-0J3J0AJ00670-1-2
15.Apr.2014 Rev.001




PDF 파일 내의 페이지 : 총 30 페이지

제조업체: ROHM Semiconductor

( rohm )

BD9A101MUV-LB converter

데이터시트 다운로드
:

[ BD9A101MUV-LB.PDF ]

[ BD9A101MUV-LB 다른 제조사 검색 ]




국내 전력반도체 판매점


상호 : 아이지 인터내셔날

전화번호 : 051-319-2877

[ 홈페이지 ]

IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈

( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )

전력반도체 문의 : 010-3582-2743



일반적인 전자부품 판매점


디바이스마트

IC114

엘레파츠

ICbanQ

Mouser Electronics

DigiKey Electronics

Element14


관련 데이터시트


BD9A101MUV-LB

Single Synchronous Buck DC/DC Converter - ROHM Semiconductor