參數(shù)資料
型號: LTC4269IDKD-2
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 560 kHz SWITCHING FREQ-MAX, PDSO32
封裝: 7 X 4 MM, PLASTIC, M0-229, DFN-32
文件頁數(shù): 31/34頁
文件大小: 383K
代理商: LTC4269IDKD-2
LTC4269-2
42692fb
Typical perForMance characTerisTics
Input Current vs Input Voltage
25k Detection Range
Input Current vs Input Voltage
Signature Resistance
vs Input Voltage
Class Operation vs Time
On-Resistance vs Temperature
PWRGD, T2P Output Low Voltage
vs Current
FB Voltage vs Temperature
VPORTP VOLTAGE (V)
0
V POR
TP
CURRENT
(mA)
0.1
0.2
0.3
0.4
0.5
2
4
6
8
42692 G01
10
TA = 25°C
VPORTP VOLTAGE RISING (V)
0
V PORTP
CURRENT
(mA)
10
20
30
40
50
10
20
30
40
42692 G02
50
60
TA = 25°C
CLASS 4
CLASS 3
CLASS 2
CLASS 1
CLASS 0
Input Current vs Input Voltage
VPORTP VOLTAGE (V)
12
9.5
V PORTP
CURRENT
(mA) 10.5
14
16
42692 G03
10.0
18
20
22
11.0
85°C
–40°C
CLASS 1 OPERATION
VPORTP VOLTAGE (V)
1
22
V1:
V2:
SIGNATURE
RESISTANCE
(k)
23
25
26
27
3
5
42692 G04
24
7
9
6
10
2
4
8
28
RESISTANCE =
DIODES: HD01
TA = 25°C
=
V
I
V2 – V1
I2 – I1
IEEE UPPER LIMIT
IEEE LOWER LIMIT
LTC4269-2 + 2 DIODES
LTC4269-2 ONLY
JUNCTION TEMPERATURE (°C)
–50
0.2
RESISTANCE
()
0.4
0.6
0.8
1.0
1.2
–25
0
25
50
42692 G06
75
100
Active High PWRGD Output Low
Voltage vs Current
CURRENT (mA)
0
PWRGD
(V)
0.4
1.0
0.5
1
42692 G08
0.2
0.8
0.6
1.5
2
TA = 25°C
VPORTP – VNEG = 4V
TEMPERATURE (°C)
–50
1.20
FB
VOLTAGE
(V)
1.22
1.25
0
50
75
42692 G09
1.21
1.24
1.23
–25
25
100 125
VPORTP
INPUT
VOLTAGE
10V/DIV
CLASS
CURRENT
10mA/DIV
TIME (10s/DIV)
42692 G05
TA = 25°C
CURRENT (mA)
0
V PWRGD
V
POR
TN
(V)
V T2P
V
POR
TN
(V)
0.4
0.6
8
42692 G07
0.2
0
2
4
6
10
0.8
TA = 25°C
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