参数资料
型号: BD3509MUV-E2
厂商: Rohm Semiconductor
文件页数: 5/21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
BD3508MUV
Technical Note
Vo
Vo
Vo
50mV/div
Io
45mV
3.0A
50mV/div
Io
64mV
3.0A
100mV/div
Io
3A
91mV
2A/div
2A/div
2A/div
Io=0A → 3A/3μsec
t(5μsec/div)
Io=0A → 3A/3μsec
t(5μsec/div)
Io=0A → 3A/3μsec
t(5μsec/div)
Fig.1 Transient Response
(0 → 3A)
Co=150μF × 2, C FB =0.01uF
Fig.2 Transient Response
(0 → 3A)
Co=150μF
Fig.3 Transient Response
(0 → 3A)
Co=47μF, C FB =0.01uF
Vo
55mV
Vo
79mV
Vo
87mV
50mV/div
50mV/div
100mV/div
Io
2A/div
3.0A
Io
2A/div
3.0A
Io
2A/div
3A
Io=3A → 0A/3μsec
t(5μsec/div)
Io=3A → 0A/3μsec
t(5μsec/div)
Io=3A → 0A/3μsec
t(5μsec/div)
Fig.4 Transient Response
(3 → 0A)
Co=150μF × 2
Ven
2V/div
VNRCS
2V/div
Vo
1V/div
t(200μsec/div)
Fig.7: Waveform at output start
VCC
Ven
VIN
Vo
VIN → VCC → Ven
Fig.10 Input sequence
www.rohm.com
? 2010 ROHM Co., Ltd. All rights reserved.
Ven
2V/div
VNRCS
2V/div
Vo
1V/div
VCC
Ven
VIN
Vo
Fig.5 Transient Response
(3 → 0A)
Co=150μF
t(2msec/div)
Fig.8 Waveform at output OFF
Ven → VCC → VIN
Fig.11 Input sequence
5/20
VCC
Ven
VIN
Vo
VCC
Ven
VIN
Vo
Fig.6 Transient Response
(3 → 0A)
Co=47μF
VCC → VIN → Ven
Fig.9 Input sequence
VCC → Ven → VIN
Fig.12 Input sequence
2010.04 - Rev.C
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