參數(shù)資料
型號(hào)： R1250V401A-E2
廠商： RICOH COMPANY LTD
元件分類： 穩(wěn)壓器
英文描述： Negative Output Charge Pump Regulator(100mA)
中文描述： SWITCHED CAPACITOR REGULATOR, 322 kHz SWITCHING FREQ-MAX, PDSO8
封裝： TSSOP-8
文件頁(yè)數(shù)： 6/14頁(yè)
文件大?。?/td> 159K
代理商： R1250V401A-E2
R1250V××1A
5
ELECTRICAL CHARACTERISTICS
R1250V
××
1A
Symbol
Item
(Unless otherwise provided, V
IN
=5.0V Topt=25
°
C, C
P
, C
OUT
= Ceramic 4.7μF)
Conditions
MIN.
TYP.
MAX.
Unit
Set Output Voltage = -2.7V to -2.0V
2.7
V
IN
Operating Input Voltage
Set Output Voltage = -4.0V to -2.8V
|
Set V
OUT
|
5.5
V
-2.4V to -2.0V
1.50
2.30
-2.9V to -2.5V
1.60
2.55
-3.4V to -3.0V
1.70
2.75
I
SS
Supply Current
Operation: Active,
for IC itself
*Note1
-4.0V to -3.5V
1.80
3.00
mA
I
STB
Shut-down Current
Operation: Shut-down, for IC
itself
*Note2
0.1
1
μA
-2.4V to -2.0V
×
0.95
×
1.05
-2.9V to -2.5V
×
0.96
×
1.04
-3.4V to -3.0V
×
0.97
×
1.03
I
OUT
=0mA/10mA
-4.0V to -3.5V
×
0.97
×
1.03
I
OUT
=50mA
-2.4V to -2.0V
×
0.88
×
1.12
-2.9V to -2.5V
×
0.89
×
1.11
-3.4V to -3.0V
×
0.91
×
1.09
V
OUT
Output Voltage
I
OUT
=75mA
-4.0V to -3.5V
×
0.92
×
1.08
V
Vref
Reference Voltage
*Note3
No load
V
OUT
V
I
OUT
=10mA to 50mA -2.4V to -2.0V
V
OUT
/
I
OUT
Load Regulation
I
OUT
=10mA to 75mA -4.0V to -2.5V
0.7
mV/
mA
fosc
Oscillator Frequency
Output Frequency
238
280
322
kHz
fosc/
T
Oscillator Frequency
Temperature Coefficient
±
0.25
kHz/
°
C
Duty
Oscillator Duty Cycle
At no Load
50
%
V
SDH
CE “H” Input Voltage
1.5
V
V
SDL
CE “L” Input Voltage
0.25
V
R
PU
CE Pull-up Resistance
0.68
1.25
3.00
M
R
O
Resistance between
V
OUT
and GND
5
k
*Note1
*Note2:
*Note3:
*Use Ceramic Capacitors with low ESR. Capacitors with high ESR could have bad effect on the performance of this IC.
Refer to Test Circuit 1.
Refer to Test Circuit 6.
Do not connect ant load. Refer to Technical Notes.
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