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| 型号： | TC1303B-EQ3EUNTR |
| 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： | 9/30页 |
| 文件大小： | 441K |
| 代理商： | TC1303B-EQ3EUNTR |
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2005 Microchip Technology Inc.
DS21949A-page 9
TC1303B
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 2-7:
I
OUT1
(V
OUT1
= 1.8V).
V
OUT1
Output Efficiency vs.
FIGURE 2-8:
Input Voltage (V
OUT1
= 3.3V).
V
OUT1
Output Efficiency vs.
FIGURE 2-9:
I
OUT1
(V
OUT1
= 3.3V).
V
OUT1
Output Efficiency vs.
FIGURE 2-10:
(V
OUT1
= 1.2V).
V
OUT1
vs. I
OUT1
FIGURE 2-11:
(V
OUT1
= 1.8V).
V
OUT1
vs. I
OUT1
FIGURE 2-12:
(V
OUT1
= 3.3V).
V
OUT1
vs. I
OUT1
75
80
85
90
95
100
0.005
0.104
0.203
0.302
0.401
0.5
I
OUT1
(A)
V
O
SHDN1 = V
IN2
SHDN2 = A
GND
V
IN
= 3.0V
V
IN
= 4.2V
V
IN
= 3.6V
80
84
88
92
96
100
3.60
3.92
4.23
4.55
4.87
5.18
5.50
Input Voltage (V)
V
O
I
OUT1
= 100 mA
I
OUT1
= 250 mA
I
OUT1
= 500 mA
SHDN1 = V
IN2
SHDN2 = A
GND
60
65
70
75
80
85
90
95
100
0.005
0.104
0.203
0.302
0.401
0.5
I
OUT1
(A)
V
O
V
IN1
= 5.5V
SHDN1 = V
IN2
SHDN2 = A
GND
V
IN1
= 4.2V
V
IN1
= 3.6V
1.19
1.194
1.198
1.202
1.206
1.21
0.005
0.104
0.203
0.302
0.401
0.5
I
OUT1
(A)
V
O
SHDN1 = V
IN2
SHDN2 = A
GND
V
IN1
= 3.6V
1.79
1.795
1.8
1.805
1.81
1.815
1.82
0.005
0.104
0.203
0.302
0.401
0.5
I
OUT1
(A)
V
O
SHDN1 = V
IN2
SHDN2 = A
GND
V
IN1
= 3.6V
3.2
3.24
3.28
3.32
3.36
3.4
0.005
0.104
0.203
0.302
0.401
0.5
I
OUT1
(A)
V
O
SHDN1 = V
IN2
SHDN2 = A
GND
V
IN1
= 4.2V
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相关代理商/技术参数 |
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| TC1303B-IA0EMF | 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 |
| TC1303B-IA0EMFTR | 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 |
| TC1303B-IA0EUN | 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 |
| TC1303B-IA0EUNTR | 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 |
| 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 |
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