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TC1301B

Microchip Technology
Part Number TC1301B
Manufacturer Microchip Technology
Description Dual LDO
Published Jun 9, 2008
Detailed Description TC1301A/B Dual LDO with Microcontroller RESET Function Features • Dual Output LDO with Microcontroller Reset Monitor Fu...
Datasheet PDF File TC1301B PDF File

TC1301B
TC1301B


Overview
TC1301A/B Dual LDO with Microcontroller RESET Function Features • Dual Output LDO with Microcontroller Reset Monitor Functionality: - VOUT1 = 1.
5V to 3.
3V @ 300 mA - VOUT2 = 1.
5V to 3.
3V @ 150 mA - VRESET = 2.
20V to 3.
20V • Output Voltage and RESET Threshold Voltage Options Available (See Table 8-1) • Low Dropout Voltage: - VOUT1 = 104 mV @ 300 mA (typical) - VOUT2 = 150 mV @ 150 mA, (typical) • Low Supply Current: 116 µA (typical), TC1301A/B with both output voltages available • Reference Bypass Input for Low-Noise Operation • Both Output Voltages Stable with a Minimum of 1 µF Ceramic Output Capacitor • Separate Input for RESET Detect Voltage (TC1301A) • Separate VOUT1 and VOUT2 SHDN pins (TC1301B) • RESET Output Duration: 300 ms (typical) • Power-Saving Shutdown Mode of Operation • Wake-up from SHDN: 5.
3 µs (typical) • Small 8-pin DFN and MSOP Package Options • Operating Junction Temperature Range: - -40°C to +125°C • Overtemperature and Overcurrent Protection Applications • Cellular/GSM/PHS Phones • Battery-Operated Systems • Hand-Held Medical Instruments • Portable Computers/PDAs • Linear Post-Regulators for SMPS • Pagers Related Literature • AN765, “Using Microchip’s Micropower LDOs”, DS00765, Microchip Technology Inc.
, 2002 • AN766, “Pin-Compatible CMOS Upgrades to BiPolar LDOs”, DS00766, Microchip Technology Inc.
, 2002 • AN792, “A Method to Determine How Much Power a SOT23 Can Dissipate in an Application”, DS00792, Microchip Technology Inc.
, 2001 Description The TC1301A/B combines two Low Dropout (LDO) regulators and a microcontroller RESET function into a single 8-pin MSOP or DFN package.
Both regulator outputs feature low dropout voltage, 104 mV @ 300 mA for VOUT1, 150 mV @ 150 mA for VOUT2, low quiescent current consumption, 58 µA each and a typical regulation accuracy of 0.
5%.
Several fixedoutput voltage and detector voltage combinations are available.
A reference bypass pin is available to further reduce output noise and improve the power supply reject...


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