TC1070/TC1071/TC1187
DS21353E-page 2 2010 Microchip Technology Inc.
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
Input Voltage .........................................................6.5V
Output Voltage...........................(-0.3V) to (V
IN
+ 0.3V)
Power Dissipation................Internally Limited (Note 5)
Maximum Voltage on Any Pin ........V
IN
+0.3V to -0.3V
Operating 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.
ELECTRICAL SPECIFICATIONS
Electrical Characteristics: V
IN
= V
OUT
+ 1V, I
L
= 0.1 mA, C
L
= 3.3 µF, SHDN >V
IH
, T
A
= +25°C, unless otherwise
noted. Boldface type specifications apply for junction temperatures of -40°C to +125°C.
Parameter Symbol Min Typ Max Units Test Conditions
Input Operating Voltage V
IN
2.7 —6.0 VNote 6
Maximum Output Current I
OUTmax
50 ——mATC1070
100 —— TC1071
150 —— TC1187
Adjustable Output
Voltage Range
V
OUT
V
REF
—5.5 V
Reference Voltage V
REF
1.165 1.20 1.235 V
V
REF
Temperature Coefficient V
REF
/T—40 —ppm/°CNote 1
Line Regulation V
OUT
/V
IN
—0.050.35 %(V
R
+ 1V) V
IN
6V
Load Regulation (Note 2) V
OUT
/V
OUT
—0.5 2 % TC1070, TC1071
I
L
= 0.1 mA to I
OUTmax
—0.5 3TC1187
I
L
= 0.1 mA to I
OUTmax
Note 1:
2: 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.
3: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its
nominal value.
4: 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
Ilmax at V
IN
= 6V for T = 10 ms.
5: 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., Ta, Tj, ja). Exceeding the maxi-
mum allowable power dissipation causes the device to initiate thermal shutdown. Please see Section 5.0
“Thermal Considerations” for more details.
6: The minimum VIN 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
.
TC V
OUT
= (V
OUTmax
– V
OUTMIN
) x 10
6
V
OUT
x T
