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参数资料
| 型号： | LT1239CS#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | 0.150 INCH, PLASTIC, SOP-16 |
| 文件页数： | 8/12页 |
| 文件大小： | 235K |
| 代理商： | LT1239CS#TR |
5
LT1239
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
Regulator 1, Comparator Quiescent
Current vs Input Voltage, Pin 14
Regulator 1 IMON Current vs
Output Current
Regulator 2 IMON2 Current vs
Output Current
OUTPUT CURRENT (mA)
0
I MON2
CURRENT
(
A)
250
200
150
100
50
0
40
LT1239 TPC04
10
20
30
50
VIN2 = 6.8V
VIMON2 = 0V
OUTPUT CURRENT (mA)
0
I MON1
CURRENT
(
A)
250
200
150
100
50
0
40
LT1239 TPC05
10
20
30
50
VIMON1 = 0V
VIN1 = 24V
VOUT1 = 6.8V
VIN1 = 5V
VOUT1 = 3.75V
VIN1 = 5V
VOUT1 = 3.75V
INPUT VOLTAGE, PIN 14 (V)
0
QUIESCENT
CURRENT
(
A)
40
35
30
25
20
15
10
5
0
LT1239 TPC06
10
5
VADJ (PIN 1) = VOUT (PIN 16)
VPIN3 = 0V
(REGULATOR 1 IN SHUTDOWN)
Regulator 2 Reverse Output
Current vs Output Voltage
Regulator 1 Reverse Output
Current vs Output Voltage
Comparator Output Saturation
Voltage vs Output Current
TEMPERATURE (
°C)
–50
SHUTDOWN
PIN
THRESHOLD
(V)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
50
75
LT1239 TPC10
–25
25
100
125
(ON-TO-OFF)
ILOAD = 1mA
(OFF-TO-ON)
ILOAD = 1mA
(OFF-TO-ON)
ILOAD = 30mA
Regulator 2, Error Amp, Low-
Battery Detector Quiescent Current
INPUT 2 VOLTAGE, PIN 10 (V)
QUIESCENT
CURRENT
(
A)
30
25
20
15
10
5
0
24
6
8
LT1239 TPC11
10
1
03
5
7
9
VSHDN2 = OPEN CIRCUIT
VSHDN2 = 0V
(REGULATOR 2
IN SHUTDOWN)
Shutdown Pin Threshold
OUTPUT VOLTAGE (V)
0
REVERSE
OUTPUT
CURRENT
(
A)
20
18
16
14
12
10
8
6
4
2
0
8
LT1239 TPC09
2
135
79
4
6
10
OUTPUT VOLTAGE (V)
0
REVERSE
OUTPUT
CURRENT
(
A)
20
18
16
14
12
10
8
6
4
2
0
8
LT1239 TPC08
2
135
79
4
6
10
VIN1 = 0V
ADJ (PIN 1) = VOUT (PIN 16)
OUTPUT CURRENT (mA)
0
OUTPUT
SATURATION
VOLTAGE
(mV)
400
350
300
250
200
150
100
50
0
80
LT1239 TPC07
20
40
60
100
70
10
30
50
90
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