R1141Q201D-TR-F
| Model | R1141Q201D-TR-F |
| Description | Fixed Positive LDO Regulator, 2V, 0.4V Dropout, CMOS, PDSO4, ROHS COMPLIANT, SC-82AB, 4-PIN |
| PDF file | Total 2 pages (File size: 135K) |
| Chip Manufacturer | RICOH |
R1141Q Series
Small 120mA LDO
The R1141Q Series are CMOS-based LDO regulators featuring 120mA output. The SC-82AB package, which is compact and easy to
mount, is used. Standby mode and auto-discharge function are also available (see Selection Guide). Ceramic capacitors can be used.
FEATURES
•
Supply Current (I
SS
) ························Typ. 90μA (V
IN
=SET V
OUT
+1V)
•
Standby Current (I
standby
) ·················Typ. 0.1μA (Same as above, CE="L")
•
Dropout Voltage (V
DIF
) ····················Typ. 0.18V (I
OUT
=120mA, V
OUT
=2.8V)
•
Ripple Rejection (RR)·····················Typ. 75dB (V
OUT
<
2.4V) (f=1kHz)
=
•
•
Typ. 70dB (V
OUT
>
2.5V) (f=1kHz)
=
Input Voltage Range (V
IN
) ···············2.2V to 6.0V
Output Voltage Range (V
OUT
)··········1.5V to 4.0V (internally fixed)
•
Output Voltage Accuracy ················± 1.5% (2.0V
<
V
OUT
<
4.0V)
=
•
•
•
•
•
±
30mV (1.5V
<
V
OUT
<
2.0V)
=
=
Temp. coeff. of Output Voltage ·······Typ.
±
100ppm/°C
Line Regulation·······························Typ. 0.02%/V
Fold-back Protection Circuit············Current limit Typ. 40mA
Package··········································SC-82AB
Ceramic capacitors can be used. ···1μF to 2.2μF or more
BLOCK DIAGRAMS
R1141Qxx1B
(Without Auto-Discharge function)
R1141Qxx1D
(With Auto-Discharge function)
V
DD
4
-
+
Vref
Current Limit
CE 3
1 V
OUT
V
DD
4
-
+
Vref
Current Limit
1 V
OUT
2 GND
CE 3
2 GND
SELECTION GUIDE
Package
SC-82AB
Quantity per Reel
3,000 pcs
Part No.
R1141Q.xx.1.
∗
-TR-F
.xx.
: Specify the output voltage within the range 1.5V (.15.) to 4.0V (.40.)
in 0.1V steps.
.∗
: Select from (.B.) without auto-discharge function or
(.D.) with auto-discharge function.
PACKAGE (Top View)
SC-82AB
4
3
TYPICAL CHARACTERISTIC
R1141Q281x
0.25
Dropout Voltage vs. Output Current
85°C
25°C
-40°C
Dropout Voltage V
DIF
(V)
0.20
0.15
0.10
0.05
0.00
1
2
1
2
3
4
V
OUT
GND
CE
V
DD
0
20
40
60
80
100
120
Output Current I
OUT
(mA)
APPLICATIONS
•
Power source for hand-held communication equipment, cameras, and VCRs
•
Power source for home appliances
•
Power source for battery-powered equipment
No.EK-086-091101
CMOS LDO Regulator
