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PDF TC1054 Data sheet ( Hoja de datos )

Número de pieza TC1054
Descripción CMOS LDOs
Fabricantes Microchip Technology 
Logotipo Microchip Technology Logotipo



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TC1054/TC1055/TC1186
50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown and ERROR Output
Features
• Low Ground Current for Longer Battery Life
• Low Dropout Voltage
• Choice of 50 mA (TC1054), 100 mA (TC1055)
and 150 mA (TC1186) Output
• High Output Voltage Accuracy
• Standard or Custom Output Voltages:
- 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3.0V,
3.3V, 3.6V, 4.0V, 5.0V
• Power-Saving Shutdown Mode
• ERROR Output Can Be Used as a Low-Battery
Detector or Microcontroller-Reset Generator
• Overcurrent and Overtemperature Protection
• 5-Pin SOT-23 Package
• Pin-Compatible Upgrades for Bipolar Regulators
Applications
• Battery Operated Systems
• Portable Computers
• Medical Instruments
• Instrumentation
• Cellular/GSM/PHS Phones
• Linear Post-Regulators for SMPS
• Pagers
Typical Application
VIN 1 VIN
VOUT 5
VOUT
TC1054
TC1055
+1 µF
2 TC1186
GND
1 M
3
SHDN
ERROR 4
ERROR
Shutdown Control
(from Power Control Logic)
General Description
The TC1054, TC1055 and TC1186 are high accuracy
(typically ±0.5%) CMOS upgrades for older (bipolar)
low dropout regulators. Designed specifically for
battery-operated systems, the devices’ CMOS
construction minimizes ground current, 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 low noise operation,
low dropout voltage – typically 85 mV (TC1054),
180 mV (TC1055) and 270 mV (TC1186) at full load —
and fast response to step changes in load. An error
output (ERROR) is asserted when the devices are
out-of-regulation (due to a low input voltage or
excessive output current). ERROR can be used as a
low battery warning or as a processor RESET signal
(with the addition of an external RC network). Supply
current is reduced to 0.5 µA (maximum), with both
VOUT and ERROR disabled when the shutdown input is
low. The devices incorporate both overtemperature
and over-current protection.
The TC1054, TC1055 and TC1186 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 refer to the TC1173 (IOUT = 300 mA) data sheet
(DS21632).
Package Type
5-Pin SOT-23
VOUT
ERROR
54
TC1054
TC1055
TC1186
123
VIN GND SHDN
Note: 5-Pin SOT-23 is equivalent to the EIAJ (SC-74A)
2002-2012 Microchip Technology Inc.
DS21350E-page 1

1 page




TC1054 pdf
TC1054/TC1055/TC1186
Note: Unless otherwise indicated, VIN = VOUT + 1V, IL = 100 µA, CL = 3.3 µF, SHDN > VIH, TA = +25°C.
80
70 ILOAD = 150 mA
60
50
40
30
20
10 CIN = 1 μF
COUT = 1 μF
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5
VIN (V)
FIGURE 2-7:
Ground Current vs. VIN
(ILOAD = 150 mA).
3.5
ILOAD = 0
3
2.5
2
1.5
1
0.5 CIN = 1 μF
COUT = 1 μF
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
VIN (V)
FIGURE 2-10:
(ILOAD = 0 mA).
VOUT vs. VIN
3.5
ILOAD = 100 mA
3.0
2.5
2.0
1.5
1.0
0.5 CIN = 1 μF
COUT = 1 μF
0.0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
VIN (V)
FIGURE 2-8:
VOUT vs. VIN
(ILOAD = 100 mA).
3.320
3.315
ILOAD = 10 mA
3.310
3.305
3.300
3.295
3.290
3.285
3.280
CIN = 1 μF
COUT = 1 μF
VIN = 4.3V
3.275
-40 -20 -10
0
20 40
TEMPERATURE (°C)
85 125
FIGURE 2-11:
Output Voltage (3.3V) vs.
Temperature (ILOAD = 10 mA).
3.290
3.288
ILOAD = 150 mA
3.286
3.284
3.282
3.280
3.278
3.276
3.274
CIN = 1 μF
COUT = 1 μF
VIN = 4.3V
-40 -20 -10
0
20 40
TEMPERATURE (°C)
FIGURE 2-9:
VOUT vs. VIN
(ILOAD = 150 mA).
85 125
5.025
5.020
5.015
5.010
5.005
5.000
4.995
4.990
4.985
ILOAD = 10 mA
VIN = 6V
CIN = 1 μF
COUT = 1 μF
-40 -20 -10 0 20 40
TEMPERATURE (°C)
85 125
FIGURE 2-12:
Output Voltage (5V) vs.
Temperature (ILOAD = 10 mA).
2002-2012 Microchip Technology Inc.
DS21350E-page 5

5 Page





TC1054 arduino
TC1054/TC1055/TC1186
6.0 PACKAGING INFORMATION
6.1 Package Marking Information
5-Lead SOT-23
Example
XXNN
CY25
(V)
TC1054
Code
1.8 CYNN
2.5 C1NN
2.6 CTNN
2.7 C2NN
2.8 CZNN
2.85 C8NN
3.0 C3NN
3.3 C4NN
3.6 C9NN
4.0 C0NN
5.0 C6NN
TC1055
Code
DYNN
D1NN
DTNN
D2NN
DZNN
D8NN
D3NN
D4NN
D9NN
D0NN
D6NN
TC1186
Code
PYNN
P1NN
PVNN
P2NN
PZNN
P8NN
P3NN
P5NN
P9NN
P0NN
P7NN
Legend:
XX...X
Y
YY
WW
NNN
e3
*
Customer-specific information
Year code (last digit of calendar year)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Pb-free JEDEC designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator (e3 )
can be found on the outer packaging for this package.
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
2002-2012 Microchip Technology Inc.
DS21350E-page 11

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