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PDF RP1227 Data sheet ( Hoja de datos )
| Número de pieza | RP1227 | |
| Descripción | 300mA LDO Regulator | |
| Fabricantes | RichPower | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RP1227 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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Preliminary
RP1227
Adjustable, 300mA LDO Regulator with Enable
General Description
The RP1227 is a high performance linear voltage regulator
with enable high function and adjustable output with a
1.175V reference voltage. It operates from an input of 3V
to 5.5V and provides output current up to 300mA with two
external resistors to set the output voltage ranges from
1.175V to 4.5V.
The RP1227 has superior regulation over variations in line
and load. Also it provides fast respond to step changes in
load. Other features include over-current and over-
temperature protection. The device has enable pin to reduce
power consumption in shutdown mode.
The devices is available in the popular SOT-23-5 package.
Ordering Information
RP1227
Package Type
B : SOT-23-5
Operating Temperature Range
G : Green (Halogen Free with Commer-
cial Standard)
Note :
Richpower Green products are :
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Features
300mV Dropout @ 300mA
150µA Low Ground Pin Current
Excellent Line and Load Regulation
<1µA Standby Current in Shutdown Mode
Guaranteed 300mA Output Current
Stable with 1µF Input and Output Ceramic Capacitor
Adjustable Output Voltage Ranges from 1.175V to
4.5V
Over-Temperature/Over-Current Protection
RoHS Compliant and 100% Lead (Pb)-Free
Applications
Battery-Powered Equipment
Graphic Card
Peripheral Cards
PCMCIA Card
Marking Information
For marking information, contact our sales representative
directly or through a Richpower distributor located in your
area.
Pin Configurations
(TOP VIEW)
VOUT ADJ
54
23
VIN GND EN
SOT-23-5
RP1227-00P Aug 2009
1
1 page  
Preliminary
RP1227
Typical Operating Characteristics
Output Voltage vs. Temperature
3.29
VIN = 5V
R1 = 1.8KΩ
R2 = 1kΩ
3.28
3.27
3.26
3.25
ADJ Pin Voltage vs. Temperature
1.2
VIN = 5V
1.19
1.18
1.17
1.16
1.15
3.24
-50
-25
0 25 50 75 100 125
Temperature (° C)
1.14
-50
-25
0 25 50 75
Temperature (° C)
100 125
Quiescent Current vs. Temperature
160
VIN = 5V
150
140
130
Quiescent Current vs. Input Voltage
150
140
130
120
-50
-25
0 25 50 75
Temperature (° C)
100 125
120
3
3.5 4 4.5 5
Input Voltage (V)
5.5
-20
-30
-40
-50
-60
-70
-80
-90
-100
10
PSRR
VIN = 4V
IL = 10mA
COUT = 1µF (X7R)
100
110K00
10100K0
Frequency (Hz)
11000K00
RP1227-00P Aug 2009
Dropout Voltage vs. Io
400
VOUT = 3.3V
350
TJ = 125° C
300
250 TJ = 25° C
200
150 TJ = -40° C
100
50
0
0 50 100 150 200 250 300
Io (mA)
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet RP1227.PDF ] | |
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