參數(shù)資料
型號: LT3575EFE#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 4.2 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝: 4.40 MM, LEAD FREE, PLASTIC, TSSOP-16
文件頁數(shù): 18/24頁
文件大小: 240K
代理商: LT3575EFE#PBF
LT3575
3
3575f
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT3575E is guaranteed to meet performance specications
from 0°C to 125°C junction temperature. Specications over the –40°C
to 125°C operating junction temperature range are assured by design
characterization and correlation with statistical process controls. The
LT3575I is guaranteed over the full –40°C to 125°C operating junction
temperature range.
Note 3: Current ows out of the RREF pin.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IREF Reference Current
Measured at RFB Pin with RREF = 6.49k
190
μA
Error Amplier Voltage Gain
VIN = 3V
150
V/V
Error Amplier Transconductance
ΔI = 10μA, VIN = 3V
150
μmhos
Minimum Switching Frequency
VC = 0.35V
40
kHz
TC Current into RREF
RTC = 20.1k
27.5
μA
BIAS Pin Voltage
IBIAS = 30mA
2.9
3
3.1
V
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 12V, unless otherwise noted.
TYPICAL PERFORMANCE CHARACTERISTICS
Output Voltage
Quiescent Current
Bias Pin Voltage
TA = 25°C, unless otherwise noted.
TEMPERATURE (°C)
–50
4.80
V
OUT
(V)
4.85
4.95
5.00
5.05
5.20
5.15
0
50
75
4.90
5.10
–25
25
100
125
3575 G01
TEMPERATURE (°C)
–50
0
I Q
(mA)
2
3
4
8
6
7
0
50
75
1
5
–25
25
100
125
3575 G02
VIN = 40V WITH BIAS = 20V
VIN = 5V WITH BIAS = 5V
TEMPERATURE (°C)
–50
2.0
BIAS
VOLTAGE
(V)
2.4
2.6
2.8
3.2
0
50
75
2.2
3.0
–25
25
100
125
3575 G03
VIN = 40V
VIN = 12V
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