参数资料
型号: TC1303B-ES3EUN
厂商: Microchip Technology Inc.
英文描述: 500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
中文描述: 500毫安同步降压稳压器,300 mA的LDO具有电源就绪输出
文件页数: 10/30页
文件大小: 441K
代理商: TC1303B-ES3EUN
TC1303B
DS21949A-page 10
2005 Microchip Technology Inc.
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 2-13:
vs. Input Voltage.
V
OUT1
Switching Frequency
FIGURE 2-14:
vs. Ambient Temperature.
V
OUT1
Switching Frequency
FIGURE 2-15:
Voltage vs. Ambient Temperature.
V
OUT1
Adjustable Feedback
FIGURE 2-16:
vs. Input Voltage.
V
OUT1
Switch Resistance
FIGURE 2-17:
Resistance vs. Ambient Temperature.
Buck Regulator Switch
FIGURE 2-18:
Ambient Temperature.
V
OUT1
Dropout Voltage vs.
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
V
O
SHDN1 = V
IN2
SHDN2 = A
GND
1.90
1.92
1.94
1.96
1.98
2.00
-
-
-
5
2
3
5
6
8
9
1
1
Ambient Temperature (°C)
V
O
SHDN1 = V
IN2
SHDN2 = A
GND
0.790
0.795
0.800
0.805
0.810
0.815
0.820
-
-
-
5
2
3
5
6
8
9
1
1
Ambient Temperature (°C)
V
O
SHDN1 = V
IN2
SHDN2 = A
GND
V
IN1
= 3.6V
0.3
0.35
0.4
0.45
0.5
0.55
0.6
3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
V
O
)
SHDN1 = V
IN2
SHDN2 = A
GND
T
A
= 25 °C
N-Channel
P-Channel
0.3
0.35
0.4
0.45
0.5
0.55
0.6
0.65
-40 -25 -10
5
20
35
50
65
80
95 110 125
Ambient Temperature (°C)
V
O
)
SHDN1 = V
IN2
SHDN2 = A
GND
V
IN1
= 3.6V
N-Channel
P-Channel
0.1
0.15
0.2
0.25
0.3
0.35
0.4
-
-
-
5
2
3
5
6
8
9
1
1
Ambient Temperature (°C)
V
O
SHDN1 = V
IN2
SHDN2 = A
GND
V
OUT1
= 3.3V
I
OUT1
= 500 mA
相关PDF资料
PDF描述
TC1303B-ES3EUNTR 500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1303B-FA0EMF 500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1303B-FA0EMFTR 500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1303B-FA0EUN 500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1303B-FA0EUNTR 500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
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TC1303B-PA0EMF 功能描述:低压差稳压器 - LDO PWM/LDO combo w/PG RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压(最大值):307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20