www.fairchildsemi.com
FAN2 5 1 4 , FAN2 5 1 5
2 0 0 m A CMOS LDO Re g u la t o rs
w it h Fa s t S t a rt En a b le
wide variety of external capacitors, and the compact SOT23-5
surface-mount package. In addition, the FAN2514/15 family
offer the fast power-cycle time required in CDMA handset
applications. The products offer significant improvements
over older BiCMOS designs and are pin-compatible with
many popular devices. The output is thermally protected
against overload.
Features
• Ultra Low Power Consumption
• Enable optimized for CDMA time slices
• 200 mV dropout voltage at 200 mA
• 50 µA ground current at 200 mA
• Enable/Shutdown Control
• SOT23-5 package
• Thermal limiting
• 300 mA peak current
The FAN2514 and FAN2515 devices are distinguished by
the assignment of pin 4:
FAN2514: pin 4 – ADJ, allowing the user to adjust the
output voltage over a wide range using an external voltage
divider.
Applications
• Cellular Phones and accessories
• PDAs
• Portable cameras and video recorders
• Laptop, notebook and palmtop computers
FAN2514-XX: pin 4 – BYP, to which a bypass capacitor
may be connected for optimal noise performance. Output
voltage is fixed, indicated by the suffix XX.
Description
FAN2515-XX: pin 4 – ERR, a flag which indicates that the
output voltage has dropped below the specified minimum
due to a fault condition.
The FAN2514/15 family of micropower low-dropout voltage
regulators utilize CMOS technology to offer a new level of
cost-effective performance in GSM, TDMA, and CDMA
cellular handsets, Laptop and Notebook portable computers,
and other portable devices. Features include extremely low
power consumption and low shutdown current, low dropout
voltage, exceptional loop stability able to accommodate a
The standard fixed output voltages available are 2.5V, 2.6V,
2.7V, 2.8V, 2.85V, 3.0V, and 3.3V. Custom output voltage are
also available: please contact your local Fairchild Sales
Office for information.
Block Diagrams
EN
EN
V
IN
V
IN
BYP
Bandgap
Bandgap
p
p
Error
Error
Amplifier
Amplifier
V
OUT
V
OUT
ADJ
Thermal
Sense
Thermal
Sense
GND
GND
EN
FAN2514-XX
V
IN
FAN2514
ERR
Bandgap
p
Error
Amplifier
V
OUT
Thermal
Sense
GND
FAN2515-XX
REV. 1.0.2 9/24/01