LDO Regulator. RP1208 Datasheet

RP1208 Regulator. Datasheet pdf. Equivalent

RP1208 Datasheet
Recommendation RP1208 Datasheet
Part RP1208
Description Ultra-Fast CMOS LDO Regulator
Feature RP1208; RP1208 300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator General Description The RP1208 is des.
Manufacture RichPower
Datasheet
Download RP1208 Datasheet




RichPower RP1208
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



RichPower RP1208
RP1208
Typical Application Circuit
VIN
CIN
1uF/X7R
Chip Enable
RP1208
VIN VOUT
GND
EN BP
VOUT
COUT
1uF/X7R
CBP
22nF
Functional Pin Description
Pin Name
EN
BP
GND
VOUT
VIN
Pin Function
Chip Enable (Active High). Note that this pin is high impedance. There should be a pull low 100k
resistor connected to GND when the control signal is floating.
Reference Noise Bypass.
Ground .
Output Voltage.
Power Input Voltage.
Function Block Diagram
EN
Quick
Start
BP VREF
Shutdown
and
Logic Control
- MOS Driver
Error
Amplifier
Current-Limit
and
Thermal Protection
VIN
VOUT
GND
2 RP1208-03 Jan 2010



RichPower RP1208
RP1208
Absolute Maximum Ratings (Note 1)
Supply Input Voltage ------------------------------------------------------------------------------------------------------ 6V
Power Dissipation, PD @ TA = 25°C
SOT-23-5 -------------------------------------------------------------------------------------------------------------------- 400mW
Package Thermal Resistance (Note 4)
SOT-23-5, θJA --------------------------------------------------------------------------------------------------------------- 250°C/W
Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C
Storage Temperature Range -------------------------------------------------------------------------------------------- 65°C to 150°C
ESD Susceptibility (Note 2)
HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 200V
Recommended Operating Conditions (Note 3)
Supply Input Voltage ------------------------------------------------------------------------------------------------------ 2.5V to 5.5V
EN Input Voltage ----------------------------------------------------------------------------------------------------------- 0V to 5.5V
Junction Temperature Range -------------------------------------------------------------------------------------------- 40°C to 125°C
Ambient Temperature Range -------------------------------------------------------------------------------------------- 40°C to 85°C
Electrical Characteristics
(VIN = VOUT + 1V, CIN = COUT = 1µF, CBP = 22nF, TA = 25° C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Output Voltage Accuracy
Current Limit
VOUT
IL IM
IOUT = 1mA
RLOAD = 1
2
360
Quiescent Current
IQ VEN 1.2V, IOUT = 0mA
--
Dropout Voltage (Note 5)
Line Regulation
Load Regulation
VDROP
IOUT = 200mA, VOUT > 2.8V
IOUT = 300mA, VOUT > 2.8V
VLINE
VIN = (VOUT + 1V) to 5.5V,
IOUT = 1mA
VLOAD 1mA < IOUT < 300mA
--
--
--
Standby Current
ISTBY VEN = GND, Shutdown
--
EN Input Bias Current
EN Threshold
Logic-Low Voltage
Logic-High Voltage
II BS D
VIL
VIH
Output Noise Voltage
eNO
Power Supply
Rejection Rate
f = 100Hz
PSRR
f = 10kHz
VEN = GND or VIN
VIN = 3V to 5.5V, Shutdown
VIN = 3V to 5.5V, Start-Up
10Hz to 100kHz, IOUT = 200mA
COUT = 1uF
COUT = 1µF, IOUT = 10mA
--
--
1.2
--
--
--
Thermal Shutdown Temperature
Thermal Shutdown Temperature
H ys teresis
TSD
∆TSD
--
--
Typ
--
400
90
170
220
--
--
0.01
0
--
--
100
70
50
165
30
Max
+2
--
130
200
300
Units
%
mA
uA
mV
0.3 %
0.6 %
1 uA
100 nA
0.4
V
--
-- uVRMS
--
dB
--
-- °C
-- °C
RP1208-03 Jan 2010
3







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