参数资料
型号: RH5RH451B-T2
厂商: RICOH COMPANY LTD
元件分类: 稳压器
英文描述: SWITCHING REGULATOR, PSSO3
封装: SOT-89, 3 PIN
文件页数: 28/29页
文件大小: 199K
代理商: RH5RH451B-T2
7
RH5RH
RH5RH302B
Symbol
Item
VOUT
Output Voltage
VIN
Input Voltage
Vstart
Oscillator Start-up Voltage
IDD1
Supply Current 1
IDD2
Supply Current 2
IEXTH
EXT “H” Output Current
IEXTL
EXT “L” Output Current
fosc
Oscillator Frequency
Maxdty
Oscillator Maximum Duty
Cycle
tstart
Soft-Start Time
Conditions
MIN.
TYP.
MAX.
Unit
Note
2.925
3.000
3.075
V
8V
EXT no load,VOUT :0
→2V
0.7
0.8
V
EXT no load,VOUT=2.88V
30
50
A
EXT no load,VOUT=3.5V
2
5
A
VEXT=VOUT–0.4V
–1.5
mA
VEXT=0.4V
1.5
mA
80
100
120
kHz
VEXT “H” side
70
80
90
%
Time required for the rising
0.5
2.0
ms
Note1
of VOUT up to 3V
VOUT=3.0V
Unless otherwise provided, VIN=1.8V, Vss=0V, IOUT=10mA, Topt=25C, and use External Circuit of Typical
Application (FIG. 2).
RH5RH502B
VOUT=5.0V
Unless otherwise provided, VIN=3V, Vss=0V, IOUT=10mA, Topt=25C and use External Circuit of Typical
Application (FIG. 2).
(Note 1) refer to page 5 (Note 1)
Symbol
Item
VOUT
Output Voltage
VIN
Input Voltage
Vstart
Oscillator Start-up Voltage
IDD1
Supply Current 1
IDD2
Supply Current 2
IEXTH
EXT “H” Output Current
IEXTL
EXT “L” Output Current
fosc
Oscillator Frequency
Maxdty
Oscillator Maximum Duty
Cycle
tstart
Soft-Start Time
Conditions
MIN.
TYP.
MAX.
Unit
Note
4.875
5.000
5.125
V
8V
EXT no load,VOUT :0
→2V
0.7
0.8
V
EXT no load,VOUT=4.8V
60
90
A
EXT no load,VOUT=5.5V
2
5
A
VEXT=VOUT–0.4V
–2
mA
VEXT=0.4V
2
mA
80
100
120
kHz
VEXT “H” side
70
80
90
%
Time required for the rising
0.5
2.0
ms
Note1
of VOUT up to 5V
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