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TC1055-2.6VCT713

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
2002-2012 Microchip Technology Inc. DS21350E-page 1
TC1054/TC1055/TC1186
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
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
V
OUT
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 (I
OUT
= 300 mA) data sheet
(DS21632).
Package Type
V
OUT
GND
1µF
+
V
IN
V
IN
V
OUT
1
5
2
4
3
SHDN
Shutdown Control
(from Power Control Logic)
ERROR
ERROR
1M
TC1054
TC1055
TC1186
Note: 5-Pin SOT-23 is equivalent to the EIAJ (SC-74A)
5
1
4
23
5-Pin SOT-23
TC1054
TC1055
TC1186
V
OUT
ERROR
SHDNGND
V
IN
50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown and ERROR Output
TC1054/TC1055/TC1186
DS21350E-page 2 2002-2012 Microchip Technology Inc.
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
Input Voltage ..................................................................6.75V
Output Voltage ..................................... (-0.3V) to (V
IN
+ 0.3V)
Power Dissipation ......................... Internally Limited (Note 6)
Maximum Voltage on Any Pin ...................V
IN
+0.3V to -0.3V
Operating Junction Temperature Range ..-40°C <T
J
< +125°C
Storage Temperature.....................................-65°C to +150°C
† Notice: Stresses above those listed under "Absolute
Maximum Ratings" may cause permanent damage to
the device. These are stress ratings only and functional
operation of the device at these or any other conditions
above those indicated in the operation sections of the
specifications is not implied. Exposure to Absolute
Maximum Rating conditions for extended periods may
affect device reliability.
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise noted, V
IN
=V
OUT
+1V, I
L
=100µA, C
L
= 3.3 µF, SHDN >V
IH
, T
A
= +25°C. Boldface
type specifications apply for junction temperatures of -40°C to +125°C.
Parameters Sym Min Typ Max Units Conditions
Input Operating Voltage V
IN
2.7 — 6.50 V Note 8
Maximum Output Current I
OUTMAX
50 ——mATC1054
100 —— TC1055
150 —— TC1186
Output Voltage V
OUT
V
R
– 2.5% V
R
±0.5% V
R
+ 2.5% V Note 1
V
OUT
Temperature
Coefficient
TCV
OUT
—20 —ppm/°CNote 2
— 40 —
Line Regulation V
OUT
/V
IN
—0.050.35 %(V
R
+ 1V) V
IN
6V
Load Regulation
TC1054; TC1055 V
OUT
/V
OUT
—0.5 2 %(Note 3)
I
L
= 0.1 mA to I
OUTMAX
TC1186 —0.5 3
Note 1: V
R
is the regulator output voltage setting. For example: V
R
= 1.8V, 2.5V, 2.7V, 2.85V, 3.0V, 3.3V, 3.6V,
4.0V, 5.0V.
2:
3: Regulation is measured at a constant junction temperature using low-duty-cycle pulse testing. Load regu-
lation is tested over a load range from 0.1 mA to the maximum specified output current. Changes in output
voltage due to heating effects are covered by the thermal regulation specification.
4: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its
nominal value.
5: Thermal Regulation is defined as the change in output voltage at a time T after a change in power dissipa-
tion is applied, excluding load or line regulation effects. Specifications are for a current pulse equal to I
LMAX
at V
IN
= 6V for T = 10 ms.
6: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable
junction temperature and the thermal resistance from junction-to-air (i.e., T
A
, T
J
,
JA
). Exceeding the
maximum allowable power dissipation causes the device to initiate thermal shutdown. See Section 5.0
“Thermal Considerations” for more details.
7: Hysteresis voltage is referenced by V
R
.
8: The minimum V
IN
has to justify the conditions: V
IN
V
R
+ V
DROPOUT
and V
IN
2.7V for I
L
= 0.1 mA to
I
OUTMAX
.
9: Apply for junction temperatures of -40°C to +85°C.
TC V
OUT
= (V
OUTMAX
– V
OUTMIN
)x 10
6
V
OUT
x T
2002-2012 Microchip Technology Inc. DS21350E-page 3
TC1054/TC1055/TC1186
Dropout Voltage V
IN
–V
OUT
—2 —mVI
L
= 100 µA
—65 — I
L
= 20 mA
—85120 I
L
= 50 m
TC1055; TC1186 —180250 I
L
= 100 mA
TC1186 — 270 400 I
L
= 150 mA (Note 4)
Supply Current I
IN
—5080 µA SHDN = V
IH
,
I
L
= 0 µA (Note 9)
Shutdown Supply Current I
INSD
— 0.05 0.5 µA SHDN = 0V
Power Supply Rejection Ratio PSRR — 64 — dB f 1kHz
Output Short Circuit Current I
OUTSC
—300450mAV
OUT
= 0V
Thermal Regulation V
OUT
/P
D
—0.04 —V/WNotes 5, 6
Thermal Shutdown
Die Temperature
T
SD
—160 —°C
Thermal Shutdown Hysteresis T
SD
—10 —°C
Output Noise eN — 260 — nV/Hz I
L
= I
OUTMAX
SHDN Input
SHDN Input High Threshold V
IH
45 — — %V
IN
V
IN
= 2.5V to 6.5V
SHDN Input Low Threshold V
IL
——15%V
IN
V
IN
= 2.5V to 6.5V
ERROR
Output
Minimum V
IN Operating Voltage V
INMIN
1.0 — — V
Output Logic Low Voltage V
OL
— — 400 mV 1 mA Flows to ERROR
ERROR Threshold Voltage V
TH
—0.95 x V
R
—VSee Figure 4-2
ERROR Positive Hysteresis V
HYS
—50 —mVNote 7
V
OUT
to ERROR Delay t
DELAY
—2.5 —msV
OUT
falling from
V
R
to V
R
– 10%
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise noted, V
IN
=V
OUT
+1V, I
L
=100µA, C
L
= 3.3 µF, SHDN >V
IH
, T
A
= +25°C. Boldface
type specifications apply for junction temperatures of -40°C to +125°C.
Parameters Sym Min Typ Max Units Conditions
Note 1: V
R
is the regulator output voltage setting. For example: V
R
= 1.8V, 2.5V, 2.7V, 2.85V, 3.0V, 3.3V, 3.6V,
4.0V, 5.0V.
2:
3: Regulation is measured at a constant junction temperature using low-duty-cycle pulse testing. Load regu-
lation is tested over a load range from 0.1 mA to the maximum specified output current. Changes in output
voltage due to heating effects are covered by the thermal regulation specification.
4: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its
nominal value.
5: Thermal Regulation is defined as the change in output voltage at a time T after a change in power dissipa-
tion is applied, excluding load or line regulation effects. Specifications are for a current pulse equal to I
LMAX
at V
IN
= 6V for T = 10 ms.
6: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable
junction temperature and the thermal resistance from junction-to-air (i.e., T
A
, T
J
,
JA
). Exceeding the
maximum allowable power dissipation causes the device to initiate thermal shutdown. See Section 5.0
“Thermal Considerations” for more details.
7: Hysteresis voltage is referenced by V
R
.
8: The minimum V
IN
has to justify the conditions: V
IN
V
R
+ V
DROPOUT
and V
IN
2.7V for I
L
= 0.1 mA to
I
OUTMAX
.
9: Apply for junction temperatures of -40°C to +85°C.
TC V
OUT
= (V
OUTMAX
– V
OUTMIN
)x 10
6
V
OUT
x T
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

TC1055-2.6VCT713

Mfr. #:
Buy TC1055-2.6VCT713
Manufacturer:
Microchip Technology
Description:
LDO Voltage Regulators .1mA w/Shtdn & Error 2.6V
Lifecycle:
New from this manufacturer.
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