TC1268 MICROCHIP [Microchip Technology], TC1268 Datasheet - Page 3

• Manufacturer Part Number: TC1268
• Description: 500mA Fixed Output, Fast Response CMOS LDO with Shutdown
• Manufacturer: MICROCHIP [Microchip Technology]

TC1268 ELECTRICAL SPECIFICATIONS
©
Electrical Characteristics: V
type specifications apply for junction temperatures of -40°C to +125°C.
ERROR Output
V
V
V
Note 1:
MIN
OL
TH
2002 Microchip Technology Inc.
2:
3:
4:
5:
6:
7:
8:
specification.
differential.
V
T
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
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
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.
Hysteresis voltage is referenced to V
The minimum V
C
R
V
is the regulator output voltage setting.
Minimum Operating Voltage
Output Logic Low Voltage
ERROR Threshold Voltage
OUT
= (V
OUT
IN
MAX
has to justify the conditions: V
V
OUT
– V
IN
OUT
x ∆T
= V
MIN
OUT
) x 10
+ 1V, I
6
R
.
L
1.0
—
—
= 100µA, C
A
, T
IN
J
(CONTINUED)
, θ
≥ V
0.95 x V
JA
). Exceeding the maximum allowable power dissipation causes the device to initiate
R
—
—
+ V
L
= 3.3µF, SHDN > V
DROPOUT
R
400
L
and V
—
—
MAX
at V
IN
IN
≥ 2.7V for I
= 6V for T = 10 msec.
IH
mV
, T
V
V
A
= 25°C, unless otherwise noted. Boldface
L
1 mA Flows to ERROR
= 0.1mA to I
OUT
MAX
.
TC1268
DS21379B-page 3