LP5952TL-0.7 Description
The LP5952 is a dual-supply-rail linear regulator optimized for powering ultralow-voltage circuits from a single Li-lon cell or 3-cell NiMH/NiCd battery.In the typical post-regulation application VBATTis directly connected to the battery(range2.5 V to5.5V, and Vn is supplied by the output voltage of the DC-DC converter(range 0.7 V to4.5V).
LP5952TL-0.7 Features
Input Voltage Range:0.7Vto4.5V
2.5V≤VBATT≤5.5V
0.5V≤VouT≤ 2V
Ensured 350-mAOutput Current For ILOAD=350 mA:
-VeAT≥ VoUTNM+ 1.5V or 2.5 V
(Whichever is Higher) For lLOAD=150 mA:
-VBAT≥VOUTNOM+1.3Vor 2.5V
(Whichever is Higher)
Excellent Load Transient Response:+15mV Typical
Excellent Line Transient Response:+1mV Typica50-uA Typical Quiescent Current from VBAL10-uA Typical Quiescent Current from Vin
0.1-uA Typical Quiescent Current in Shutdown Noise voltage=100 uVMs Typical
Operates from a Single Li-lon Cell or 3-Cell NiMH/NiCd Battery
Thermal-Overload and Short-Circuit Protection
LP5952TL-0.7 Applications
Mobile Phones
Hand-Held Radios
Personal Diqital Assistants Palm-Top PCs
PortableInstruments
Battery-Powered Devices
