Datasheet

© 2008 Microchip Technology Inc. DS21949C-page 15
TC1303A/TC1303B/TC1303C/TC1304
Note: Unless otherwise indicated, V
IN1
= V
IN2
= SHDN1,2 = 3.6V, C
OUT1
=C
IN
= 4.7 µF, C
OUT2
=1µF, L =4.7µH,
V
OUT1
(ADJ) = 1.8V, T
A
= +25°C. Boldface specifications apply over the T
A
range of -40°C to +85°C. T
A
= +25°C. Adjustable- or fixed-
output voltage options can be used to generate the Typical Performance Characteristics.
FIGURE 2-25: V
OUT2
Output Voltage vs.
Input Voltage (V
OUT2
= 3.3V).
FIGURE 2-26: V
OUT2
Dropout Voltage vs.
Ambient Temperature (V
OUT2
= 2.5V).
FIGURE 2-27: V
OUT2
Dropout Voltage vs.
Ambient Temperature (V
OUT2
= 3.3V).
FIGURE 2-28: V
OUT2
Line Regulation vs.
Ambient Temperature.
FIGURE 2-29: V
OUT2
Load Regulation vs.
Ambient Temperature.
FIGURE 2-30: PG Active Delay Time-out
vs. Ambient Temperature.
3.292
3.293
3.294
3.295
3.296
3.297
3.298
3.60 3.92 4.23 4.55 4.87 5.18 5.50
Input Voltage (V)
V
OUT2
Output Voltage (V)
T
A
= - 40°C
T
A
= + 25°C
T
A
= + 85°C
I
OUT2
= 150 mA
SHDN1 = A
GND
SHDN2 = V
IN2
0.05
0.10
0.15
0.20
0.25
0.30
-40 -25 -10
5
20 35 50 65 80 95
110 125
Ambient Temperature (°C)
V
OUT2
Dropout Voltage (V)
I
OUT2
= 200 mA
I
OUT2
= 300 mA
SHDN1 = A
GND
SHDN2 = V
IN2
0.0
0.1
0.2
0.3
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ambient Temperature (°C)
V
OUT2
Dropout Voltage (V)
I
OUT2
= 200 mA
SHDN1 = A
GND
SHDN2 = V
IN2
I
OUT2
= 300 mA
-0.035
-0.030
-0.025
-0.020
-0.015
-0.010
-0.005
0.000
0.005
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ambient Temperature (°C)
V
OUT2
Line Regulation (%/V)
V
OUT2
= 3.3V
I
OUT2
= 100 µA
SHDN1 = A
GND
SHDN2 = V
IN2
V
OUT2
= 2.5V
V
OUT2
= 1.5V
-0.4
-0.3
-0.2
-0.1
0.0
0.1
-40 -25 -10
5
20 35 50 65 80 95
110 125
Ambient Temperature (°C)
V
OUT2
Load Regulation (%)
V
OUT2
= 3.3V
V
IN2
= 3.6V SHDN1 = A
GND
SHDN2 = V
IN2
V
OUT2
= 2.6V
V
OUT2
= 1.5V
200
225
250
275
300
325
350
-40 -25 -10 5 20 35 50 65 80 95 110 125
Ambient temperature (°C)
PG Active Delay Time (ms)
SHDN1 = V
IN2
SHDN2 = V
IN2
V
IN
= 3.6V