TC1303C-1A1EMF
| Model | TC1303C-1A1EMF |
| Description | 0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, 0.9 MM HEIGHT, PLASTIC, DFN-10 |
| PDF file | Total 38 pages (File size: 756K) |
| Chip Manufacturer | MICROCHIP |
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
= 1 µF, L = 4.7 µH,
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.
96
95
94
93
92
91
90
-40 -25 -10
5
20 35 50 65 80 95 110 125
Ambient Temperature (°C)
PG Threshold Low
PG Threshold Hi
PG Threshold (% of V
OUT2
)
V
IN
= 3.6V
SHDN1 = V
IN2
SHDN2 = V
IN2
0
-10
V
OUT2
PSRR (dB)
-20
-30
-40
-50
-60
-70
SHDN1 = GND
V
OUT2
= 1.5V
I
OUT2
= 30 mA
C
IN
= 0 µF
C
OUT2
= 1.0 µF
C
OUT2
= 4.7 µF
-80
0.01
0.1
1
10
100
1000
Frequency (kHz)
FIGURE 2-31:
PG Threshold Voltage vs.
Ambient Temperature.
0.02
0.018
PG V
OL
(V)
0.016
0.014
0.012
0.01
-40
-25
-10
5
20
35
50
65
80
95
110
125
Ambient Temperature (°C)
I
OL
= 1.2 mA
FIGURE 2-34:
V
OUT2
Power Supply Ripple
Rejection vs. Frequency.
10
V
OUT2
Noise (μV/¥Hz)
V
IN
= 3.6V
SHDN1 = V
IN2
SHDN2 = V
IN2
SHDN1 = A
GND
SHDN2 = V
IN2
1
0.1
V
IN
= 3.6V
V
OUT2
= 2.5V
I
OUT2
= 50 mA
0.01
0.01
0.1
1
10
100
1000
10000
Frequency (kHz)
FIGURE 2-32:
PG Output Voltage Level
Low vs. Ambient Temperature.
3.0
2.5
V
OUT2
= 2.5V
V
OUT2
= 2.8V
FIGURE 2-35:
V
OUT2
Noise vs. Frequency.
PG V
OH
(V)
2.0
1.5
1.0
0.5
0.0
-40 -25 -10
5
20 35 50 65 80 95 110 125
Ambient Temperature (°C)
V
IN
= 3.6V
I
OH
= 500 µA
V
OUT2
= 1.5V
SHDN1 = V
IN2
SHDN2 = V
IN2
FIGURE 2-33:
PG Output Voltage Level
High vs. Ambient Temperature.
FIGURE 2-36:
vs. Time.
V
OUT1
Load Step Response
DS21949C-page 16
©
2008 Microchip Technology Inc.
