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PDF RP1208 Data sheet ( Hoja de datos )
| Número de pieza | RP1208 | |
| Descripción | Ultra-Fast CMOS LDO Regulator | |
| Fabricantes | RichPower | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RP1208 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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RP1208
300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator
General Description
The RP1208 is designed for portable RF and wireless
applications with demanding performance and space
requirements. The RP1208 performance is optimized for
battery-powered systems to deliver ultra low noise and
low quiescent current. A noise bypass pin is available for
further reduction of output noise. Regulator ground current
increases only slightly in dropout, further prolonging the
battery life. The RP1208 also works with low-ESR ceramic
capacitors, reducing the amount of board space necessary
for power applications, critical in hand-held wireless
devices. The RP1208 consumes less than 0.01uA in
shutdown mode and has fast turn-on time less than 50us.
The other features include ultra low dropout voltage, high
output accuracy, current limiting protection, and high ripple
rejection ratio. Available in the SOT-23-5 package.
Ordering Information
RP1208-
Package Type
B : SOT-23-5
Operating Temperature Range
G : Green (Halogen Free with Commer-
cial Standard)
Output Voltage
15 : 1.5V
16 : 1.6V
:
49 : 4.9V
50 : 5.0V
1H : 1.85V
2H : 2.85V
4G : 4.75V
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
Ultra-Low-Noise for RF Application
Ultra-Fast Response in Line/Load Transient
Quick Start-Up (Typically 50us)
< 0.01uA Standby Current When Shutdown
Low Dropout : 220mV @ 300mA
Wide Operating Voltage Ranges : 2.5V to 5.5V
TTL-Logic-Controlled Shutdown Input
Low Temperature Coefficient
Current Limiting Protection
Thermal Shutdown Protection
Only 1uF Output Capacitor Required for Stability
High Power Supply Rejection Ratio
Custom Voltage Available
RoHS Compliant and Halogen Free
Applications
CDMA/GSM Cellular Handsets
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
PCMCIA Cards
Portable Information Appliances
Pin Configurations
(TOP VIEW)
VIN 1 5 VOUT
GND 2
EN 3 4 BP
SOT-23-5
Marking Information
For marking information, contact our sales representative
directly or through a RichPower distributor located in your
area.
RP1208-03 Jan 2010
1
1 page  
Typical Operating Characteristics
Output Voltage vs. Temperature
1.8
RP1208-15xU5
VIN = 3.3V
1.7 CIN = COUT = 1uF X7R
1.6
1.5
1.4
1.3
1.2
-50
-25
0 25 50 75
Temperature (°C)
100 125
Dropout Voltage vs. Load Current
300
RP1208-33xB
CIN = COUT = 1uF
250
TJ= 125° C
200
TJ=25° C
150
TJ= -40° C
100
50
0
0 0.05 0.1 0.15 0.2 0.25 0.3
Load Current (A)
EN Pin Shoutdown Threshold vs. Temperature
1.75
1.5
RP1208-15xU5
VIN = 3.3V
CIN = COUT = 1uF X7R
1.25
1
0.75
0.5
-50
-25
0 25 50 75
Temperature (°C)
100 125
RP1208-03 Jan 2010
RP1208
Quiescent Current vs. Temperature
95
RP1208-15xU5
VIN = 3.3V
90 CIN = COUT = 1uF X7R
85
80
75
70
65
60
-50
-25
0 25 50 75
Temperature (°C)
100 125
PSRR
20
VIN = 4V to 5V
CIN = COUT = 1uF, X7R
0
-20
-40
-60
-80
01.001
ILoad = 100mA
ILoad = 10mA
100.10 11K 1100K 110000K
Frequency (kHHzz) )
110M00
Start Up
VIN = 5V
10 CIN = COUT = 1uF
RP1208-28xU5
No Load
5
0
2
1
0
Time (10µs/Div)
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet RP1208.PDF ] | |
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