TC1174 Microchip, TC1174 Datasheet - Page 2

• Manufacturer Part Number: TC1174
• Description: 300mA CMOS LDO with Shutdown and VREF Bypass
• Manufacturer: Microchip

TC1174
1.0
Absolute Maximum Ratings*
Input Voltage .........................................................6.5V
Output Voltage.................. (V
Power Dissipation................Internally Limited (Note 5)
Maximum Voltage on Any Pin ........ V
Operating Temperature Range...... -40°C < T
Storage Temperature.......................... -65°C to +150°C
TC1174 ELECTRICAL SPECIFICATIONS
DS21363B-page 2
Electrical Characteristics: V
type specifications apply for junction temperatures of -40°C to +125°C.
V
I
V
∆V
∆V
∆V
V
I
I
PSRR
I
∆V
eN
SHDN Input
V
V
ADJ Input
I
OUT
SS1
SS2
OUT
ADJ
IN
REF
IN
IH
IL
OUT
OUT
OUT
OUT
Symbol
-V
MAX
SC
OUT
/∆T
/∆V
/V
/∆P
1:
2:
3:
4:
5:
6:
OUT
ELECTRICAL
CHARACTERISTICS
IN
D
TC V
Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested over a load range
from 0.1mA to the maximum specified output current. Changes in output voltage due to heating effects are covered by the thermal
regulation specification.
Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at a
1V differential.
Thermal Regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied, excluding load or
line regulation effects. Specifications are for a current pulse equal to I
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
thermal shutdown. Please see Section 4.0 Thermal Considerations for more details.
The minimum V
OUT
Input Operating Voltage
Maximum Output Current
Reference Voltage
V
Line Regulation
Load Regulation
Dropout Voltage
Supply Current
Shutdown Supply Current
Power Supply Rejection Ratio
Output Short Circuit Current
Thermal Regulation
Output Noise
SHDN Input High Threshold
SHDN Input Low Threshold
Adjustable Input Leakage Current
OUT
= (V
Temperature Coefficient
OUT
IN
MAX
has to justify the conditions: V
V
Parameter
OUT
– V
IN
SS
= V
x ∆T
OUT
– 0.3V) to (V
OUT
MIN
) x 10
+ 1V, I
IN
6
+0.3V to -0.3V
L
= 0.1µA, C
IN
J
A
< 125°C
, T
+ 0.3V)
J
IN
, θ
1.165
≥ V
Min
300
JA
2.7
45
—
—
—
—
—
—
—
—
—
—
—
—
—
—
). Exceeding the maximum allowable power dissipation causes the device to initiate
R
L
+ V
= 3.3µF, SHDN > V
DROPOUT
1.20
0.05
0.05
0.04
Typ
270
550
260
1.1
40
20
80
50
60
50
—
—
—
—
*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.
L
and V
MAX
at V
IN
≥ 2.7V for I
IN
1.235
IH
Max
0.35
160
480
650
6.0
2.0
0.5
30
90
15
= 6V for T = 10 msec.
—
—
—
—
—
—
—
, T
A
= 25°C, unless otherwise noted. Boldface
L
= 0.1mA to I
ppm/°C
nV/√Hz
Units
%V
%V
V/W
mA
mV
mA
µA
µA
dB
pA
%
%
V
V
IN
IN
©
2002 Microchip Technology Inc.
Note 6
Note 1
(V
I
I
I
I
SHDN = V
SHDN = 0V
F
V
Note 4
F = 10kHz, I
470pF from Bypass to GND
OUT
L
L
L
L
RE
OUT
R
= 0.1mA to I
= 0.1mA
= 100mA
= 300mA (Note 3)
MAX
+ 1V) ≤ V
– 1kHz
= 0V
.
Test Conditions
IH
L
IN
= I
OUT
≤ 6V
OUT
MAX
MAX
(Note 2)