LTC3670
FEATURES
DESCRIPTION n Triple Output Supply from a Single 2.5V to 5.5V Input n 400m A Buck DC/DC Plus Dual 150m A LDOs in One IC n Outputs Regulate Down to 0.8V n ±2.5% Reference Accuracy n Constant-Frequency 2.25MHz Operation n Burst Mode® Operation for High Efficiency at Light
Loads; IQ = 70µA, All Outputs Enabled n Independent Enable Pin for Each Output n Current Mode Operation for Excellent Line and Load
Transient Response n Internal Soft-Start for Each Output n Tiny 12-Lead 3mm × 2mm × 0.75mm DFN Package
APPLICATIONS n Handheld Products n Portable Instruments n Single-Cell Li-Ion/Li-Polymer Powered Devices n DMB/DVB-H Multimedia Cell Phones n Multivoltage Power for Digital Logic, I/O, FPGAs,
CPLDs, ASICs, So Cs, CPUs and RF Chipsets
The LTC®3670 is a triple power supply posed of a 400m A synchronous buck regulator and two 150m A low dropout linear regulators (LDOs). The input supply range of 2.5V to 5.5V is especially well-suited for single-cell Lithium-Ion and...
