参数资料
型号: TC1313-CN2EMF
厂商: Microchip Technology Inc.
英文描述: 500 mA Synchronous Buck Regulator, + 300 mA LDO
中文描述: 500毫安同步降压稳压器,300 mA的LDO
文件页数: 11/28页
文件大小: 392K
代理商: TC1313-CN2EMF
2005 Microchip Technology Inc.
DS21974A-page 11
TC1313
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.
FIGURE 2-25:
Ambient Temperature (V
OUT2
= 2.5V).
V
OUT2
Dropout Voltage vs.
FIGURE 2-26:
Ambient Temperature (V
OUT2
= 3.3V).
V
OUT2
Dropout Voltage vs.
FIGURE 2-27:
Ambient Temperature.
V
OUT2
Line Regulation vs.
FIGURE 2-28:
Ambient Temperature.
V
OUT2
Load Regulation vs.
FIGURE 2-29:
Rejection vs. Frequency.
V
OUT2
Power Supply Ripple
FIGURE 2-30:
V
OUT2
Noise vs. Frequency.
0.05
0.10
0.15
0.20
0.25
0.30
-
-
-
5
2
3
5
6
8
9
1
1
Ambient Temperature (°C)
V
O
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
O
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
O
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
-
-
-
5
2
3
5
6
8
9
1
1
Ambient Temperature (°C)
V
O
V
OUT2
= 3.3V
V
IN2
= 3.6V
SHDN1 = A
GND
SHDN2 = V
IN2
V
OUT2
= 2.6V
V
OUT2
= 1.5V
-80
-70
-60
-50
-40
-30
-20
-10
0
0.01
0.1
1
10
100
1000
Frequency (kHz)
V
O
SHDN1 = GND
V
OUT2
= 1.5V
I
OUT2
= 30 mA
C
IN
= 0 μF
C
OUT2
= 1.0 μF
C
OUT2
= 4.7 μF
0.01
0.1
1
10
0.01
0.1
1
10
100
1000
10000
Frequency (kHz)
V
O
SHDN1 = A
GND
SHDN2 = V
IN2
V
IN
= 3.6V
V
OUT2
= 2.5V
I
OUT2
= 50 mA
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