BD9873CP-V5 Ver la hoja de datos (PDF) - ROHM Semiconductor
Número de pieza
componentes Descripción
Fabricante
BD9873CP-V5 Datasheet PDF : 13 Pages
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BD9873CP-V5,BD9874CP-V5
●Operating Conditions(Ta=-40～+85℃)
Parameter
Symbol
MIN
Input Voltage
VCC
8.0
Output Voltage
Vo
1.0
Limit
TYP
-
-
MAX
35.0
0.8×
(VCC-Io×
Ron)
Unit
V
V
Technical Note
Conditions
●Electrical Characteristics（Unless otherwise noted, Ta=25℃,Vcc=12V,Vo=5V,STBY=3V）
Parameter
Symbol
Limit
Unit
MIN TYP MAX
Conditions
Output ON Resistance
Efficiency
Switching Frequency
Load Regulation
Line Regulation
Over Current Protection
Limit
Over Current Protection
Limit
INV Pin Input Current
STBY
ON
-
1.0
1.5
Ω BD9873
Ron
-
0.5
1.0
Ω BD9874
η
80
88
-
％ Io＝0.5A
fosc
99
110
121 kHz
Vcc=20V,
-
5
40
mV Io=0.5～1.5A
ΔVOLOAD
BD9873
Vcc=20V,
-
5
40
mV Io=1.0～3.0A
BD9874
ΔVOLINE
-
5
25
Vcc=10～30V,
mV
Io=1.0A
1.6
-
Iocp
3.2
-
-
A BD9873
-
A BD9874
VINV
0.985 1.00 1.015 V
IINV
-
VSTBYON
2.0
1
2
μA VINV=1.0V
-
VCC
V
Pin Threshold
OFF
Voltage
STBYPin Input Current
Circuit Current
VSTBYOFF
-0.3
-
0.3
V
Istby
Icc
5
15
30 μA STBY=3V
-
5
12
mA INV=2V
Stand-by Current
Soft Start Time
Ist
-
0
5
μA STBY＝0V
Tss
-
4
20
ms STBY=0→3V
This product is not designed to be resistant to radiation.
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© 2009 ROHM Co., Ltd. All rights reserved.
2/12
2009.07 - Rev.A
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