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TC2185 Datasheet

  • TC2185

  • 50 mA, 100 mA, 150 mA CMOS LDOs with Shutdown and Reference ...

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  • MICROCHIP   MICROCHIP

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M
Features
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TC2014/2015/2185
General Description
The TC2014, TC2015 and TC2185 are high-accuracy
(typically 鹵0.4%) CMOS upgrades for bipolar low drop-
out regulators, such as the LP2980. Total supply cur-
rent is typically 55 碌A(chǔ); 20 to 60 times lower than in
bipolar regulators.
The key features of the device include low noise oper-
ation (plus bypass reference), low dropout voltage
鈥?typically 45 mV for the TC2014, 90 mV for the
TC2015, and 140 mV for the TC2185, at full load 鈥?and
fast response to step changes in load. Supply current
is reduced to 0.5 碌A(chǔ) (max) and V
OUT
falls to zero when
the shutdown input is low. The devices also incorporate
over-current protection.
The TC2014, TC2015 and TC2185 are stable with an
output capacitor of 1 碌F and have a maximum output
current of 50 mA, 100 mA and 150 mA, respectively.
For higher output versions, see the TC1107
(DS21356), TC1108 (DS21357) and TC1173
(DS21362) (I
OUT
= 300 mA) datasheets.
50 mA, 100 mA, 150 mA CMOS LDOs with
Shutdown and Reference Bypass
Low Supply Current: 80 碌A(chǔ) (Max)
Low Dropout Voltage: 140 mV (Typ) @ 150 mA
High Output Voltage Accuracy: 鹵0.4% (Typ)
Standard or Custom Output Voltages
Power-Saving Shutdown Mode
Reference Bypass Input for Ultra Low-Noise
Operation
Fast Shutdown Response Time: 60 碌sec (Typ)
Over-Current Protection
Space-Saving 5-Pin SOT-23A Package
Pin Compatible Upgrades for Bipolar Regulators
Wide Operating Temperature Range:
-40擄C to +125擄C
Applications
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Battery Operated Systems
Portable Computers
Medical Instruments
Instrumentation
Cellular / GSM / PHS Phones
Linear Post-Regulator for SMPS
Pagers
Related Literature
鈥?Application Notes: AN765, AN766, AN776 and
AN792
Typical Application
V
IN
+
1
1 碌F
V
IN
V
OUT
5
+
1 碌F
V
OUT
Package Type
5-Pin SOT-23A
V
OUT
5
Bypass
4
TC2014
TC2015
TC2185
1
V
IN
2
3
3
SHDN
Bypass
4
0.01 碌F
Reference
Bypass Cap
(Optional)
Shutdown Control
(from Power Control Logic)
2
GND
TC2014
TC2015
TC2185
GND SHDN
錚?/div>
2003 Microchip Technology Inc.
DS21662C-page 1

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