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Details, datasheet, quote on part number:TPS60311
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Datasheet text preview:
TPS60310, TPS60311, TPS60312, TPS60313 SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT, HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE
SLVS362A MAY 2001 REVISED AUGUST 2001
features
applications
D Regulated 3-V or 3.3-V Output Voltage With D D D D D D D D
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 µA Supervisor Included; Open Drain or Push-Pull Power Good Output No Inductors Required/Low EMI Only Five Small, 1-µF Ceramic Capacitors Required Microsmall 10-Pin MSOP Package
D D D D D D D
Pagers Battery-Powered Toys Portable Measurement Instruments Home Automation Products Medical Instruments (Like Hearing Instruments) Metering Applications Using MSP430 Microcontroller Portable Smart Card Readers
DGS PACKAGES (TOP VIEW)
SNOOZE C1 VIN C1+ OUT1
1 2 3 4 5
10 9 8 7 6
PG GND C2 C2+ OUT2
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).
ACTUAL SIZE 3,05 mm x 4,98 mm
Only five small 1-µF ceramic capacitors 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.
typical application circuit
C1F 1 µF 2 INPUT 0.9 V to 1.8 V CIN 1 µF C1 3 VIN + TPS60310 OUT2 1 ON/OFF 4 C1+ 8 C2 C2F 1 µF 7 C2+ OUT1 5 + 6 R SNOOZE GND 9 PG 10 C(OUT1) 1 µF 2× IN Max 40 mA 3.3 V ±4% Max 20 mA + C(OUT2) 1 µF
EFFICIENCY vs OUTPUT CURRENT (OUT2) 90 80 70 Efficiency % 60 50 40 30 20 VI = 1.3 V 0 10 100 0.001 0.01 0.1 1 IO Output Current (OUT2) mA Snooze mode improves efficiency at an output current in the range of 1 µA to 100 µA. 10 Normal Mode Snooze Mode
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 2001, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
1
TPS60310, TPS60311, TPS60312, TPS60313 SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT, HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE
SLVS362A MAY 2001 REVISED AUGUST 2001
description (continued)
Output 1 (OUT1) can deliver a maximum of 40 mA, from a 1-V input, with output 2 (OUT2) not loaded. OUT2 can deliver a maximum of 20 mA, from a 1-V input, with OUT1 not loaded. Both outputs can be loaded at the same time, but the total output current of the first voltage doubler must not exceed 40 mA. For example, the load at OUT1 is 20 mA and the load at output 2 is 10 mA. In snooze mode, the devices operate with a typical operating current of 2 µA, while the output voltage is maintained at 3.3 V ±10% or 3 V ±10%, respectively. This is lower than the self-discharge current of most batteries. Load current in snooze mode is limited to 2 mA. If the load current increases above 2 mA, the output voltage drops further and the devices automatically exits the snooze mode and operate in normal mode to regulate to the nominal output voltage with higher output currents. The device is set into the snooze mode by taking the SNOOZE pin low, and is set into normal operating mode by taking the SNOOZE pin high. A power-good function supervises the output voltage of OUT2 and can be used for power up and power down sequencing. Power-good (PG) is offered as either open-drain or push-pull output.
AVAILABLE OPTIONS PART NUMBER TPS60310DGS TPS60311DGS TPS60312DGS TPS60313DGS MARKING DGS PACKAGE ATG ATI ATK ATL OUTPUT CURRENT 1 [mA] 40 40 40 40 OUTPUT CURRENT 2 [mA]§ 20 20 20 20 OUTPUT VOLTAGE 1 [V] 2 x VIN 2 x VIN 2 x VIN 2 x VIN OUTPUT VOLTAGE 2 [V] 3.3 3 3.3 3 FEATURE Open-drain power-good output Open-drain power-good output Push-pull power-good output
Push-pull power-good output The DGS package is available taped and reeled. Add R suffix to device type (e.g. TPS60310DGSR) to order quantities of 2500 devices per reel. If OUT2 is not loaded. § If OUT1 is not loaded.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
TPS60310, TPS60311, TPS60312, TPS60313 SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT, HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE
SLVS362A MAY 2001 REVISED AUGUST 2001
TPS60310 and TPS60311 functional block diagram
C1F C1 C1+
VIN
CP1 2x (Doubler) Charge Pump
OUT1
_ SNOOZE Control Oscillator + _ Reg + Vref CP2 1.5x/2x Charge Pump + _
PG (Push-Pull Output for TPS60312 and TPS60313)
OUT2
C2 GND C2F
C2+
Terminal Functions
TERMINAL NAME C1+ C1 C2+ C2 GND OUT1 OUT2 PG NO. 4 2 7 8 9 5 6 10 O O O I/O Positive terminal of the flying capacitor C1F Negative terminal of the flying capacitor C1F Positive terminal of the flying capacitor C2F Negative terminal of the flying capacitor C2F GROUND 2 × VIN power output. Bypass OUT1 to GND with the output filter capacitor C(OUT1). Regulated 3.3-V power output (TPS60310, TPS60312) or 3-V power output (TPS60311, TPS60313), respectively Bypass OUT2 to GND with the output filter capacitor C(OUT2). Power good detector output. As soon as the voltage on OUT2 reaches about 98% of its nominal value this pin goes high. Open drain output on TPS60310 and TPS60311. A pullup resistor should be connected between PG and OUT1 or OUT2. Push-pull output stage on TPS60312 and TPS60313 SNOOZE 1 I Snooze mode enable input SNOOZE = Low enables the snooze mode at low output current. SNOOZE = High disables the snooze mode. VIN 3 I Supply input. Bypass VIN to GND with a 1-µF capacitor. DESCRIPTION
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
3
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