FAN2560 — 350mA Low-VIN LDO with Fast Transient Response
www.DataSheet4U.com
February 2008
FAN2560 350mA Low-VIN LDO ...
FAN2560 — 350mA Low-VIN LDO with Fast Transient Response
www.DataSheet4U.com
February 2008
FAN2560 350mA Low-VIN LDO with Fast Transient Response
Features
55µA Typical Quiescent Current Up to 350mA Output Current 2.9V to 5.5V Bias Supply Voltage VOUT+0.1V to 5.5V Power Input Supply Voltage Fixed Voltage Options: 1.3V and 1.5V Thermal Shutdown Protection (TSD) Input Under-Voltage Lockout (UVLO) Short-Circuit Current Protection (SCP) 5-bump 0.96 x 1.33mm WLCSP
Description
The FAN2560 is a linear low-dropout (LDO)
regulator with a split-supply architecture. Separate bias and supply inputs allow bias to be taken directly from the battery, while the input is taken from a lower preregulated source. This allows a smaller differential voltage between input and output, which provides greater efficiency over a wider VBAT range. The FAN2560 is available in a fixed-voltage output, 5-bump, WLCSP package.
Applications
Moderate Current Digital Loads DVB-H, DMB Processors Handsets, Smartphones WLAN DC-DC Converter Modules PDA, DSC, PMP, and MP3 Players Portable Hard Disk Drives
Typical Applications
2.9 to 5.5V VOUT +0.3V
CIN VBAT VIN VOUT
VBAT
2.9 to 5.5V
VIN VOUT GND
1 F
FAN2560
GND
CIN
COUT
1μF
FAN2560
2.2 F
COUT
2.2μF
EN
EN
Figure 1. Separate Supply and Bias Line
Figure 2. Connected Supply and Bias Line
Ordering Information
Part Number
FAN2560UC13X FAN2560UC15X
Operating Temperature Range
-40°C to 85°C -40°C to 85°C
Package
WLCSP-5 0.9...