BD3508MUV-E2 Rohm Semiconductor, BD3508MUV-E2 Datasheet - Page 7

• Manufacturer Part Number: BD3508MUV-E2
• Description: IC REG LDO N-CH FET ULT LO 20QFN
• Manufacturer: Rohm Semiconductor
• Series: -r

Specifications of BD3508MUV-E2

• Regulator Topology: Positive Adjustable
• Voltage - Output: 0.65 V ~ 2.7 V
• Voltage - Input: 0.75 V ~ 5.5 V
• Voltage - Dropout (typical): 0.065 @ 1A
• Number Of Regulators: 1
• Current - Output: 3A (Min)
• Current - Limit (min): -
• Operating Temperature: -10°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 20-VFQFN Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

●Reference Data
© 2010 ROHM Co., Ltd. All rights reserved.
BD3508MUV,BD3509MUV
50mV/div
50mV/div
www.rohm.com
PGOOD
VNRCS
2A/div
2A/div
2V/div
1V/div
1V/div
2V/div
BD3509MUV
VEN
VEN
VCC
VIN
Vo
Vo
Vo
Vo
Io
Io
Fig.31: Waveform at output start
Io=4A→0A/4µsec
Io=0A→4A/4µsec
37mV
Fig.25 Transient Response
Fig.28 Transient Response
39mV
Fig.34 Input sequence
Co=22µF, C
Co=22µF,C
VIN→VCC→VEN
4.0A
4.0A
(0→4A)
(4→0A)
FB
FB
t(100µsec/div)
t(10µsec/div)
=0.01µF
=0.01µF
t(200µsec/div)
50mV/div
50mV/div
PGOOD
VNRCS
2V/div
1V/div
1V/div
2V/div
2A/div
2A/div
VEN
VEN
VCC
VIN
Vo
Vo
Vo
Vo
Io
Io
Io=4A→0A/4µsec
Io=0A→4A/4µsec
Fig.26 Transient Response
4.0A
51mV
Fig.29 Transient Response
Fig.32 Waveform at output
Fig.35 Input sequence
VEN→VCC→VIN
Co=100µF
41mV
4.0A
Co=100µF
(0→4A)
(4→0A)
7/20
OFF
t(100µsec/div)
t(10µsec/div)
t(2msec/div)
100mV/div
50mV/div
2A/div
VEN
VCC
2A/div
VIN
VEN
VCC
VIN
Vo
Vo
Vo
Vo
Io
Io
Io=0A→4A/4µsec
Io=4A→0A/4µsec
4.0A
41mV
Fig.30 Transient Response
Fig.27 Transient Response
Fig.33 Input sequence
Fig.36 Input sequence
Co=47µF, C
Co=47µF,C
VCC→VEN→VIN
VCC→VIN→VEN
39mV
4.0A
(4→0A)
(0→4A)
2010.04 - Rev.C
Technical Note
FB
FB
t(100µsec/div)
=0.01µF
=0.01µF
t(10µsec/div)