参数资料
| 型号： | BD9137MUV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 15/21页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 4A 20VQFN |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 3.3 V |
| 输入电压： | 2.7 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 4A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFQFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 20-VQFN |
| 其它名称： | BD9137MUV-E2DKR |
BD9137MUV
Datasheet
● Cautions on PC Board Layout
Fig.36 Layout diagram
① Lay out the input ceramic capacitor CIN closer to the pins PVCC and PGND, and the output capacitor Co closer to the
pin PGND.
②
Lay out CITH and RITH between the pins ITH and GND as neat as possible with least necessary wiring.
※ VQFN020V4040 (BD9137MUV) has thermal PAD on the reverse of the package.
The package thermal performance may be enhanced by bonding the PAD to GND plane which take a large area
of PCB.
● Recommended Components Lists on Above Application
Symbol
L
C IN
C O
Part
Coil
Ceramic capacitor
Ceramic capacitor
Value
2.0μH
2.2μH
22μF
22μF
V OUT =1.0V
V OUT =1.2V
1500pF
1000pF
Manufacturer
Sumida
Sumida
Murata
Murata
Murata
Murata
Series
CDR6D28MNP-2R0NC
CDR6D26NP-2R2NC
GRM32EB11A226KE20
GRM31CB30J226KE18
CRM18 Series
GRM18 Series
C ITH
R ITH
Cf
Rf
C BST
Ceramic capacitor
Resistance
Ceramic capacitor
Resistance
Ceramic capacitor
V OUT =1.5V
V OUT =1.8V
V OUT =2.5V
V OUT =3.3V
V OUT =1.0V
V OUT =1.2V
V OUT =1.5V
V OUT =1.8V
V OUT =2.5V
V OUT =3.3V
1000 pF
10 Ω
0.1 μF
1000pF
560pF
560pF
330pF
5.6k Ω
6.8k Ω
6.8k Ω
8.2k Ω
12k Ω
15k Ω
Murata
Murata
Murata
Murata
Rohm
Rohm
Rohm
Rohm
Rohm
Rohm
Murata
Rohm
Murata
GRM18 Series
GRM18 Series
GRM18 Series
GRM18 Series
MCR03 Series
MCR03 Series
MCR03 Series
MCR03 Series
MCR03 Series
MCR03 Series
GRM18 Series
MCR03 Series
GRM18 Series
※ The parts list presented above is an example of recommended parts. Although the parts are sound, actual circuit
characteristics should be checked on your application carefully before use. Be sure to allow sufficient margins to
accommodate variations between external devices and this IC when employing the depicted circuit with other circuit
constants modified. Both static and transient characteristics should be considered in establishing these margins. When
switching noise is substantial and may impact the system, a low pass filter should be inserted between the VCC and
PVCC pins, and a schottky barrier diode or snubber established between the SW and PGND pins.
www.rohm.com
?2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
15/19
TSZ02201-0J3J0AJ00160-1-2
02.MAR.2012 Rev.001
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| BD9139MUV_12 | 制造商:ROHM 制造商全称:Rohm 功能描述:2.7V to 5.5V, 3A 1ch Synchronous Buck Converter integrated FET |
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