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參數(shù)資料
| 型號(hào)： | TC1303B-DD0EMFTR |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output |
| 中文描述： | 500毫安同步降壓穩(wěn)壓器，300 mA的LDO具有電源就緒輸出 |
| 文件頁(yè)數(shù)： | 13/30頁(yè) |
| 文件大?。?/td> | 441K |
| 代理商： | TC1303B-DD0EMFTR |
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2005 Microchip Technology Inc.
DS21949A-page 13
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 2-31:
Low vs. Ambient Temperature.
PG Output Voltage Level
FIGURE 2-32:
High vs. Ambient Temperature.
PG Output Voltage Level
FIGURE 2-33:
Rejection vs. Frequency.
V
OUT2
Power Supply Ripple
FIGURE 2-34:
V
OUT2
Noise vs. Frequency.
FIGURE 2-35:
vs. Time.
V
OUT1
Load Step Response
FIGURE 2-36:
vs. Time.
V
OUT2
Load Step Response
0.01
0.012
0.014
0.016
0.018
0.02
-
-
-
5
2
3
5
6
8
9
1
1
Ambient Temperature (°C)
P
O
V
IN
= 3.6V
I
OL
= 1.2 mA
SHDN1 = V
IN2
SHDN2 = V
IN2
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-40 -25 -10
5
20
35
50
65
80
95 110 125
Ambient Temperature (°C)
P
O
V
IN
= 3.6V
I
OH
= 500 μA
V
OUT2
= 2.8V
V
OUT2
= 2.5V
V
OUT2
= 1.5V
SHDN1 = V
IN2
SHDN2 = V
IN2
-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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| TC1303B-DF0EMF | 功能描述:低壓差穩(wěn)壓器 - LDO PWM/LDO combo w/PG RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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| TC1303B-DG0EMF | 功能描述:低壓差穩(wěn)壓器 - LDO PWM/LDO combo w/PG RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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