TPS60312

Features:

 Regulated 3-V or 3.3-V Output Voltage With up to 20-mA Output Current From a 0.9-V to 1.8-V Input Voltage Range
 High Power Conversion Efficiency (up to 90%) Over Wide Output Current Range,Optimized for 1.2-V Battery Voltage
 Snooze Mode for Improved Efficiency at Low-Output Current
 Additional Output With 2 Times VI (OUT1)
 Device Quiescent Current Less Than 2 A
 Supervisor Included; Open Drain or Push-Pull Power Good Output
 No Inductors Required/Low EMI
 Only Five Small, 1-F Ceramic Capacitors Required
 Microsmall 10-Pin MSOP Package


Application

 Pagers
 Battery-Powered Toys
 Portable Measurement Instruments
 Home Automation Products
 Medical Instruments (Like Hearing Instruments)
 Metering Applications Using MSP430 Microcontroller
 Portable Smart Card Readers


Pinout




Specifications

Input voltage, V_I (IN to GND) (see Note 1) . . . . . . . . . . . . . . . . . . . 0.3 V to 2 V
Output voltage, V_O (OUT1, OUT2, EN, PG to GND) (see Note 1) . . 0.3 V to 3.6 V
Voltage, (C1+ to GND) . .. . . . . . . . . . . . . . . . . . . . . . 0.3 V to VO(OUT1) + 0.3 V
Voltage, (C1 to GND, C2 to GND)  . . . . . . . . . . . . . . . . . 0.3 V to VIN + 0.3 V
Voltage, (C2+ to GND) .. . . . . . . . . . . . . . . . . . . . . . . 0.3 V to VO(OUT2) + 0.3 V
Continuous power dissipation  . . . . . . . . . . . . . . . . See Dissipation Rating Table
Output current, IO (OUT1)  . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 mA
Output current, IO (OUT2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA
Storage temperature range, T_stg   . . . . . . . . . . . . . . . . . . . . . 55°C to 150°C
Maximum junction temperature, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C


Description

The TPS6031X step-up, regulated charge pumps generate a 3-V ±4% or 3.3-V ±4% output voltage from a 0.9-V to 1.8-V input voltage (one alkaline,NiCd, or NiMH battery).

Only five small 1-F ceramic capacitors TPS6031X are required to build a complete high-efficiency dc/dc charge pump converter. To achieve the high efficiency over a wide input voltage range, the charge pump automatically selects between a 3x or 4x conversion mode.