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TC1014 fiches techniques PDF

Microchip Technology - CMOS LDOs

Numéro de référence TC1014
Description CMOS LDOs
Fabricant Microchip Technology 
Logo Microchip Technology 





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TC1014 fiche technique
TC1014/TC1015/TC1185
50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown
and Reference Bypass
Features:
General Description
• Low Supply Current (50 µA, typical)
• Low Dropout Voltage
• Choice of 50 mA (TC1014), 100 mA (TC1015)
and 150 mA (TC1185) Output
• High Output Voltage Accuracy
• Standard or Custom Output Voltages
• Power-Saving Shutdown Mode
• Reference Bypass Input for Ultra Low-Noise
Operation
• Overcurrent and Overtemperature Protection
• Space-Saving 5-Pin SOT-23 Package
• Pin-Compatible Upgrades for Bipolar Regulators
• Standard Output Voltage Options:
- 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3.0V,
3.3V, 3.6V, 4.0V, 5.0V
Applications:
• Battery-Operated Systems
• Portable Computers
• Medical Instruments
• Instrumentation
• Cellular/GSM/PHS Phones
• Linear Post-Regulator for SMPS
• Pagers
Typical Application
VIN 1 VIN
VOUT 5
VOUT
TC1014
TC1015
+
1 µF
2
TC1185
GND
The TC1014/TC1015/TC1185 are high accuracy
(typically ±0.5%) CMOS upgrades for older (bipolar)
Low Dropout Regulators (LDOs) such as the LP2980.
Designed specifically for battery-operated systems, the
devices’ CMOS construction eliminates wasted ground
current, significantly extending battery life. Total supply
current is typically 50 µA at full load (20 to 60 times
lower than in bipolar regulators).
The devices’ key features include ultra low-noise
operation (plus optional Bypass input), fast response to
step changes in load, and very low dropout voltage,
typically 85 mV (TC1014), 180 mV (TC1015), and
270 mV (TC1185) at full-load. Supply current is
reduced to 0.5 µA (max) and VOUT falls to zero when
the shutdown input is low. The devices incorporate both
overtemperature and overcurrent protection.
The TC1014/TC1015/TC1185 are stable with an output
capacitor of only 1 µF and have a maximum output
current of 50 mA, 100 mA and 150 mA, respectively.
For higher output current regulators, please see the
TC1107 (DS21356), TC1108 (DS21357), TC1173
(DS21362) (IOUT = 300 mA) data sheets.
Package Type
5-Pin SOT-23
VOUT
Bypass
54
TC1014
TC1015
TC1185
1 23
3
SHDN
4
Bypass
470 pF
Reference
Bypass Cap
(Optional)
VIN GND SHDN
Shutdown Control
(from Power Control Logic)
© 2007 Microchip Technology Inc.
DS21335E-page 1

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