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Details, datasheet, quote on part number: 46WX2984MMIC2660BM5
 
 
Part number46WX2984MMIC2660BM5
Category
DescriptionIc-sm-voltage Converter
CompanyN.A.
DatasheetDownload 46WX2984MMIC2660BM5 datasheet
 


 
Specifications, Features, Applications

The MIC2660 IttyBittyTM charge pump functions as a lowcurrent, step-up converter where conventional inductor based, dc-to-dc converters are too complex and expensive. This device features a complete, self-contained charge pump in a tiny 5-lead SOT-23-5 package. The MIC2660 is powered from to 5V nominal supply and produces nominally as a function of the input voltage. The output is unregulated and follows a load-line type function. The MIC2660 can be used with or without external components. When used with two noncritical external capacitors, a 3V input will produce at 3.8mA. With no external components, a 3V input will produce at 2.5mA. The MIC2660 charge pump consists of an approximately 18MHz oscillator and a voltage tripler. The MIC2660 is available in the SOT-23-5 package and is rated for to +85°C ambient temperature range.

Features

· 3V input produces approx. 5V unregulated output* 3.8mA with 1µF external output capacitor 2.5mA without external capacitor· 5V input produces approx. 9V unregulated output* 4.5mA output without external capacitor· CMOS-logic compatible enable· ESD protected

Applications

· Squib firing Refresh Burst/dump Low duty cycle load LCD bias generator Local 5V logic supply MOSFET driver Battery or solarcell boost

+5V, 2.5mA* Output 0.01µF * The output is unregulated and follows a load-line type function

Pin Number Pin Name IN GND OUT NC EN Pin Function Supply (Input): to +5V supply. Ground: Power return. Output: Charge pump output. Connect to load. Not internally connected. Enable (Input): CMOS compatible input. EN high (VEN = VIN) enables the charge pump. EN low (VIN = 0V) disables the charge pump.

Input Voltage (VIN)..................................................... +5.5V Enable Voltage (VEN)......................................... VIN + 1.3V Ambient Temperature Range (TA)............. to +85°C Lead Temperature, Soldering 10sec........................ 300°C Package Thermal Resistance SOT-23-5 JA.................................................... 220°C/W SOT-23-5 JC.................................................... 130°C/W

Parameter Output Voltage, Enabled Condition (Note 1) VIN = 3V, VEN = VIN, COUT = 2k VIN = 5V, VEN = VIN, COUT = 2k Output Voltage, Disabled VIN = 3V, VEN = GND, COUT = 2k VIN = 5V, VEN = GND, COUT = 2k Input Current VIN = 3V, VEN = VIN, = 2k VIN = 5V, VEN = VIN, = 2k Quiescent Current VIN = 3V, VEN < 0.4V VIN = 5V, VEN < 0.4V Output Current VIN = 3V, VEN = VIN, VOUT = VOUT min VIN = 5V, VEN = VIN, VOUT = VOUT min Enable Threshold VIN = 3V VIN = 5V Enable Current Turn-On Time Turn-Off Time VIN = 5V, VEN = VIN = 3V VIN = 3V Load = 2k, COUT = 1000pF, Note 2 Load = 2k, COUT = 1000pF, Note Min 8.1.9 2.9 Typ Max Units ns µs

General Note: Devices are ESD protected, however handling precautions are recommended. Note 1: Note 2: Note 3: Typicals values = 25°C. Minimum and maximum values TA +85°C. Turn-on time is the time between VEN 0.5 × VIN and VOUT = 0.9 (VOUTmax ­ VOUTmin) for a rising EN input. Turn-off time is the time between VEN 0.5 × VIN and VOUT = VIN ­ 1.9V for a falling EN input.

20 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) COUT = NONE C NO LOAD 5 1mA SUPPLY VOLTAGE (V) 2mA 20 OUTPUT VOLTAGE (V) COUT = NONE C NO LOAD 5 1mA SUPPLY VOLTAGE (V) 5.0 2mA

20 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) COUT C NO LOAD 5 1mA SUPPLY VOLTAGE (V) 2mA 20
20 OUTPUT VOLTAGE (V) COUT C NO LOAD 5 1mA SUPPLY VOLTAGE (V) 5.0 2mA



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