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.
100
95
V
OUT1
Efficiency(%)
90
85
80
75
70
65
60
2.7
3.05
3.4
3.75
4.1
4.45
4.8
5.15
5.5
Input Voltage (V)
I
OUT1
= 250 mA
I
OUT1
= 500 mA
I
OUT1
= 100 mA
SHDN1 = V
IN2
SHDN2 = A
GND
100
V
OUT1
Efficiency (%)
95
90
85
80
75
70
65
V
IN1
= 3.6V
V
IN1
= 4.2V
V
IN1
= 5.5V
SHDN1 = V
IN2
SHDN2 = A
GND
60
0.005
0.104
0.203
0.302
0.401
0.5
I
OUT1
(A)
FIGURE 2-7:
V
OUT1
Output Efficiency vs.
Input Voltage (V
OUT1
= 1.8V).
100
V
OUT1
Efficiency(%)
95
90
85
80
75
0.005
V
IN
= 3.6V
V
IN
= 3.0V
FIGURE 2-10:
V
OUT1
Output Efficiency vs.
I
OUT1
(V
OUT1
= 3.3V).
1.21
1.206
V
OUT1
(V)
1.202
1.198
1.194
1.19
0.005
V
IN1
= 3.6V
SHDN1 = V
IN2
SHDN2 = A
GND
SHDN1 = V
IN2
SHDN2 = A
GND
V
IN
= 4.2V
0.104
0.203
0.302
0.401
0.5
0.104
0.203
0.302
0.401
0.5
I
OUT1
(A)
I
OUT1
(A)
FIGURE 2-8:
V
OUT1
Output Efficiency vs.
I
OUT1
(V
OUT1
= 1.8V).
100
V
OUT1
Efficiency (%)
96
92
88
I
OUT1
= 500 mA
I
OUT1
= 100 mA
SHDN1 = V
IN2
SHDN2 = A
GND
FIGURE 2-11:
(V
OUT1
= 1.2V).
1.82
1.815
V
OUT1
(V)
1.81
1.805
1.8
1.795
1.79
0.005
V
OUT1
vs. I
OUT1
V
IN1
= 3.6V
SHDN1 = V
IN2
SHDN2 = A
GND
I
OUT1
= 250 mA
84
80
3.60
3.92
4.23
4.55
4.87
5.18
5.50
0.104
0.203
0.302
0.401
0.5
Input Voltage (V)
I
OUT1
(A)
FIGURE 2-9:
V
OUT1
Output Efficiency vs.
Input Voltage (V
OUT1
= 3.3V).
FIGURE 2-12:
(V
OUT1
= 1.8V).
V
OUT1
vs. I
OUT1
DS21949C-page 12
©
2008 Microchip Technology Inc.
