TPS60204, TPS60205 REGULATED 3.3ĆV, 100ĆmA LOWĆRIPPLE CHARGE PUMP
LOW POWER DC/DC CONVERTERS
SLVS354A − FEBRUARY 2001 − ...
TPS60204, TPS60205 REGULATED 3.3ĆV, 100ĆmA LOWĆRIPPLE CHARGE PUMP
LOW POWER DC/DC CONVERTERS
SLVS354A − FEBRUARY 2001 − REVISED SEPTEMBER 2001
features
D Regulated 3.3-V Output
Voltage With up to
100-mA Output Current From a 1.8-V to 3.6-V Input
Voltage
D Less Than 5-mV(PP) Output
Voltage Ripple
Achieved With Push-Pull Topology
D Integrated Low-Battery and Power-Good
Detector
D Switching Frequency Can Be Synchronized
to External Clock Signal
D Extends Battery Usage With up to 90%
Efficiency and 35-µA Quiescent Supply Current
D Easy-to-Design, Low Cost, Low EMI Power
Supply Since No Inductors Are Used
D 0.05-µA Shutdown Current, Battery is
Isolated From Load in Shutdown Mode
·
description
D Compact Converter Solution in UltraSmall
10-pin MSOP With Only Four External
Capacitors Required
D Evaluation Module Available
(TPS60200EVM-145)
applications
D Replaces DC/DC Converters With Inductors
in Battery Powered Applications Like: − Two Battery Cells to 3.3-V Conversion − MP3 Portable Audio Players − Battery-Powered Microprocessor
Systems − Backup-Battery Boost Converters − PDA’s, Organizers, and Cordless Phones − Handheld Instrumentation − Glucose Meters and Other Medical
Instruments
The TPS6020x step-up, regulated charge pumps generate a 3.3-V ±4% output
voltage from a 1.8-V to 3.6-V input
voltage. The devices are typically powered by two Alkaline, NiCd, or NiMH battery cells and operate down to a minimum supply
voltage of 1.6 V. Continuous output current is a minimum of 100 mA...