参数资料
型号: BD3509MUV-E2
厂商: Rohm Semiconductor
文件页数: 7/21页
文件大小: 0K
描述: IC REG LDO ADJ 4A 20QFN
标准包装: 2,500
稳压器拓扑结构: 正,可调式
输出电压: 0.65 V ~ 2.7 V
输入电压: 0.7 V ~ 5.5 V
电压 - 压降(标准): 0.028V @ 1A
稳压器数量: 1
电流 - 输出: 4A(最小)
工作温度: -10°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 20-VFQFN 裸露焊盘
供应商设备封装: VQFN020V4040
包装: 带卷 (TR)
BD3508MUV,BD3509MUV
● Reference Data
BD3509MUV
Technical Note
Vo
50mV/div
Io
39mV
Vo
50mV/div
Io
51mV
Vo
100mV/div
Io
41mV
2A/div
4.0A
2A/div
4.0A
2A/div
4.0A
Io=0A → 4A/4μsec
t(10μsec/div)
Io=0A → 4A/4μsec
t(10μsec/div)
Io=0A → 4A/4μsec
t(10μsec/div)
Fig.25 Transient Response
(0 → 4A)
Co=22μF,C FB =0.01μF
37mV
Fig.26 Transient Response
(0 → 4A)
Co=100μF
Fig.27 Transient Response
(0 → 4A)
Co=47μF,C FB =0.01μF
Vo
50mV/div
Io
Vo
50mV/div
Io
41mV
Vo
50mV/div
Io
39mV
2A/div
4.0A
2A/div
4.0A
2A/div
4.0A
Io=4A → 0A/4μsec
t(100μsec/div)
Io=4A → 0A/4μsec
t(100μsec/div)
Io=4A → 0A/4μsec
t(100μsec/div)
Fig.28 Transient Response
(4 → 0A)
Co=22μF, C FB =0.01μF
VEN
2V/div
VNRCS
1V/div
Vo
1V/div
PGOOD
2V/div
t(200μsec/div)
Fig.31: Waveform at output start
VEN
VCC
VIN
Vo
VIN → VCC → VEN
Fig.34 Input sequence
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? 2010 ROHM Co., Ltd. All rights reserved.
VEN
2V/div
VNRCS
1V/div
Vo
1V/div
PGOOD
2V/div
VEN
VCC
VIN
Vo
Fig.29 Transient Response
(4 → 0A)
Co=100μF
t(2msec/div)
Fig.32 Waveform at output
OFF
VEN → VCC → VIN
Fig.35 Input sequence
7/20
VEN
VCC
VIN
Vo
VEN
VCC
VIN
Vo
Fig.30 Transient Response
(4 → 0A)
Co=47μF, C FB =0.01μF
VCC → VIN → VEN
Fig.33 Input sequence
VCC → VEN → VIN
Fig.36 Input sequence
2010.04 - Rev.C
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