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부품번호 | BD91364BMUU 기능 |
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기능 | 5A Integrated MOSFET Single Synchronous Buck DC/DC Converter | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 30 페이지수
Datasheet
2.9V to 5.5V Input, 5A Integrated MOSFET
Single Synchronous Buck DC/DC Converter
BD91364BMUU
General Description
ROHM’s high efficiency switching regulator,
BD91364BMUU, is a step-down converter designed to
produce a low voltage output of 0.8V to 3.3V from a 2.9V
to 5.5V power supply line. It offers high efficiency in all
load ranges by automatic PFM/PWM adjustment. It
employs an On-time control system to provide faster
transient response to sudden change in load.
Features
Fast transient response with On-time control
system.
High efficiency for all load range with synchronous
rectifier (Nch/Nch FET) and adaptive PFM/PWM
system.
Adjustable Soft-start function.
Thermal and UVLO protection.
Short-circuit current protection with timer latch.
Shutdown function.
Key Specifications
Input Voltage Range:
2.9V to 5.5V
Output Voltage Range:
0.8V to PVCC×0.8V
Output Current:
5.0A(Max)
Switching Frequency:
1.7MHz(Typ)
High Side FET ON Resistance:
27mΩ(Typ)
Low Side FET ON Resistance:
27mΩ(Typ)
Standby Current:
0μA (Typ)
Operating Temperature Range: -40°C to +105°C
Package
VQFN20U4040M
W(Typ) x D(Typ) x H(Max)
4.00mm x 4.00mm x 0.50mm
Applications
Power supply for LSI including SoC, DSP,
Micro computer and ASIC
Laptop PC / Tablet PC / Server
LCD TV, Storage Devices (HDD / SSD)
Printer
Entertainment device
Secondary power supply
VQFN20U4040M
Typical Application Circuit
VIN
CIN
22µF
CSS
PVCC
AVCC
EN
BD91364BMUU
SS
GND
RS
PGD
BST
SW
FB
CBST
L
0.47µH
PGD
VOUT
CO
22µF
Figure 1. Typical Application Circuit
〇Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 14 • 001
〇This product has no designed protection against radioactive rays
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BD91364BMUU
Datasheet
Electrical Characteristics
(Unless otherwise specified Ta= 25°C AVCC=PVCC=5V, EN=VCC, R1=200kΩ, R2=51kΩ)
Parameter
Symbol Min Typ Max Unit
Conditions
AVCC and PVCC Voltage Range
Standby Supply Current
Operating Supply Current
UVLO Threshold Voltage
UVLO Release Voltage
VIN
ISTB
ICC
VUVLO1
VUVLO2
2.9
-
100
2.650
2.450
-
-
150
2.750
2.550
5.5
3
200
2.850
2.650
V
µA EN=GND
µA Non-switching
V VCC rising
V VCC falling
Enable
EN Low-level Input Voltage
EN High-level Input Voltage
EN Input Current
VENL
VENH
IEN
GND
1.8
-
-
-
3
0.8 V Standby mode
VCC V Active mode
6 µA VEN=5V
Power GOOD
PG Threshold Voltage
PG Hysteresis Voltage
PG Detect Delay Time
Open Drain Output Resistance
PG Leakage Current
VPGTH
VPGHYS
PDELAY
RPG
IPL
-20%
-25%
6
50
-
-15%
-20%
15
100
-
-10%
-15%
25
200
1
V VFB-15% (Typ)
V VFB-20% (Typ)
µs
Ω VFB <VPGTH
µA VPG=5V
Power Switch
High Side FET ON Resistance
Low Side FET ON Resistance
On-Time
RONH
RONL
TON
-
-
94
27 50 mΩ PVCC=5V
27 50 mΩ PVCC=5V
118 142
ns VCC=5V,VOUT=1.0V,PWM
Soft Start
Soft Start Time
Soft Start Charge Current
TSS 0.45
1
2 ms Internal
ISS 0.5 1.2 1.8 µA
Output
Voltage Reference Accuracy
Remote Sense Detect Voltage Range
VFB
VRS
0.788
0
0.800
-
0.812
100
V
mV
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
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4페이지 BD91364BMUU
Typical Performance Curves - continued
Datasheet
PVCC
5V/div
EN pin
5V/div
VOUT
0.5V/div
PVCC=5V
VOUT=1.0V/1.0A
L=0.47µH
500µs/div
PVCC
5V/div
EN pin
5V/div
VOUT
0.5V/div
PVCC=5V
VOUT=1.0V/1.0A
L=0.47µH
500µs/div
Figure 12. Start-up with EN
Figure 13. Shutdown with EN
PVCC
5V/div
SW pin
5V/div
VOUT
0.5V/div
PVCC
5V/div
SW pin
5V/div
PVCC=5V
VOUT=1.0V/1.0A
L=0.47µH
100µs/div
VOUT
0.5V/div
PVCC=5V
VOUT=1.0V/1.0A
L=0.47µH
100µs/div
Figure 14. PVCC variation 2.9V to 5.5V
Figure 15. PVCC variation 5.5V to 2.9V
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111 • 15 • 001
7/27
TSZ02201-0J2J0AJ00930-1-2
27.Jul.2015 Rev.001
7페이지 | |||
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부품번호 | 상세설명 및 기능 | 제조사 |
BD91364BMUU | 5A Integrated MOSFET Single Synchronous Buck DC/DC Converter | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |