fitipower integrated technology lnc.
500mA Low Noise LDO with
Soft-Start and Output Discharge Function
Description
Features
The FP6142 is a family of CMOS low dropout (LDO)
regulators with a low dropout voltage of 250mV at
500mA designed for noise-sensitive portable device,
RF and wireless applications. Quiescent current of
FP6142 is as low as 50μA and it works with low-ESR
ceramic capacitors, which makes it very suitable for
space sensitive handheld applications. The soft-start
function will eliminate current surges during start-up
and the output discharge function will dissipate the
residue output voltage in the capacitor during
shut-down.
Ultra-Low Dropout Voltage of 250mV at 500mA
Wide Operating Voltage Ranges from 2.2V to
5.5V
Low Quiescent Current at 50μA
Programmable Soft Start
5mA Discharge Current of VOUT when IC
Shutdown
Low Output Noise
Fast Response in Line/Load Transient
Current Limit Protection
Thermal Shutdown Protection
1µF Output Capacitor Required for Stability
RoHS Compliant
Other features include current limit, thermal protection,
high output accuracy, and low noise output etc..
The FP6142 is available in both SOT-23-5 and
SC-70-5 packages.
Applications
Digital Still Camera
CDMA/GSM Cellular-Handset
Portable Information Appliance
Laptop, Palmtop and Notebook Computer
Mini PCI, PCI-Express and PCMCIA Card
Pin Assignments
Ordering Information
FP6142-□□□□
S5 Package (SOT-23-5)
TR: Tape/Reel
VOUT
SS
P: Green
G: Green
5
1
4
3
2
Package Type
S5: SOT-23-5
C5: SC-70-5
VIN GND EN
Output Voltage
C5 Package (SC-70-5)
15: 1.5V
18: 1.8V
25: 2.5V
28: 2.8V
30: 3.0V
31: 3.1V
33: 3.3V
VOUT
SS
5
1
4
3
Note: Please consult Fitipower sales office or
authorized distributors for availability of special
output voltages.
2
VIN GND EN
Figure 1. FP6142 Pin Assignments
FP6142-1.5-MAY-2013
1