參數(shù)資料
型號(hào): 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): 33/34頁
文件大小: 383K
代理商: LTC4269IDKD-2
LTC4269-2
42692fb
Typical perForMance characTerisTics
COMP Sink Current
vs Temperature
(Disabled) COMP Pin Current
vs Temperature
ISENSE Maximum Threshold
vs COMP
ISENSE Maximum Threshold
vs Temperature
ISENSE Pin Current (Out of Pin)
vs Duty Cycle
ISENSE Maximum Threshold
vs Duty Cycle (Programming
Slope Compensation)
OC (Overcurrent) Threshold
vs Temperature
Blank Duration vs Temperature
BLANK Duration vs RBLANK
TEMPERATURE (°C)
–50
5.0
COMP
SINK
CURRENT
(mA)
12.5
0
50
75
42692 G19
10.0
7.5
–25
25
100 125
FB = 1.4V
COMP = 1.6V
TEMPERATURE (°C)
–50
0
COMP
PIN
CURRENT
(A)
50
40
30
0
50
75
42692 G20
10
20
–25
25
100 125
FB = VREF
COMP = 1.6V
COMP (V)
0
I SENSE
MAX
THRESHOLD
(mV)
240
160
200
120
1.0
2.0
2.5
42692 G21
40
80
0.5
1.5
3.0
TA = 25°C
RISENSE = 0k
OC THRESHOLD
TEMPERATURE (°C)
–50
200
I SENSE
MAX
THRESHOLD
(mV)
210
240
0
50
75
42692 G22
230
220
–25
25
100 125
COMP = 2.5V
RISENSE = 0k
DUTY CYCLE (%)
0
I SENSE
PIN
CURRENT
(A)
10
40
20
50 60
42692 G23
30
20
10
30 40
80
70
90 100
TA = 25°C
DUTY CYCLE (%)
0
175
185
I SENSE
MAX
THRESHOLD
(mV)
195
225
20
50 60
42692 G24
215
205
10
30 40
80
70
90 100
RSLOPE = 1k
RSLOPE = 470
RSLOPE = 0
TA = 25°C
COMP = 2.5V
TEMPERATURE (°C)
–50
80
OC
THRESHOLD
(mV)
90
120
0
50
75
42692 G25
110
100
–25
25
100 125
PRECISION OVERCURRENT THRESHOLD
INDEPENDENT OF DUTY CYCLE
TEMPERATURE (°C)
–50
0
BLANK
DURATION
(ns)
200
800
0
50
75
42692 G26
600
400
–25
25
100 125
RBLANK = 40k
RBLANK = 120k
RBLANK (k)
0
BLANK
(ns)
400
200
1000
40
80 100
42692 G27
800
600
20
60
140
120
160
TA = 25°C
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