參數(shù)資料
型號: LT3512HMS#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 0.8 A SWITCHING REGULATOR, 650 kHz SWITCHING FREQ-MAX, PDSO12
封裝: LEAD FREE, PLASTIC, MSOP-16/12
文件頁數(shù): 20/26頁
文件大?。?/td> 244K
代理商: LT3512HMS#TRPBF
LT3512
3
3512fa
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 24V unless otherwise noted.
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 LT3512E is guaranteed to meet performance specifications
from 0°C to 125°C junction temperature. Specifications over the –40°C
to 125°C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls. The
LT3512I is guaranteed to meet performance specifications from –40°C to
125°C operating junction temperature range. The LT3512H is guaranteed
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
TC Current into RREF
RTC = 53.6k
9.5
μA
BIAS Pin Voltage
Internally Regulated
3
3.1
3.2
V
to meet performance specifications from –40°C to 150°C operating
junction temperature range. The LT3511MP is guaranteed over the full
–55°C to 150°C operating junction range. High junction temperatures
degrade operating lifetimes. Operating lifetime is derated at junction
temperatures greater than 125°C.
Note 3: Current flows out of the RREF pin.
Note 4: The SW pin is rated to 150V for transients. Operating waveforms
of the SW pin should keep the pedestal of the flyback waveform below
100V as shown in Figure 5.
TYPICAL PERFORMANCE CHARACTERISTICS
Switch VCESAT
Switch Current Limit
Quiescent Current vs VIN
Output Voltage
Quiescent Current
BIAS Pin Voltage
TA = 25°C, unless otherwise noted.
TEMPERATURE (°C)
–50 –25
0
I Q
(mA)
4
8
0
50
75
3512 G02
2
6
25
100
150
125
VIN = 24V
VIN = 48V
VIN = 100V
TEMPERATURE (°C)
–50
2.0
BIAS
VOL
TAGE
(V)
2.5
3.0
3.5
4.0
–25
0
25
50
3512 G03
75
100
150
125
VIN = 24V, 10mA
VIN = 24V, NO LOAD
SWITCH CURRENT (mA)
0
SWITCH
V
CESAT
VOLTAGE
(mV)
800
2000
100
200
300
3512 G04
400
1600
1200
400
500
TEMPERATURE (°C)
–50
CURRENT
LIMIT
(mA)
700
25
3512 G05
400
200
–25
0
50
100
0
800
600
500
300
75
100
150
125
MINIMUM CURRENT LIMIT
MAXIMUM CURRENT LIMIT
VOLTAGE (V)
0
I Q
(mA)
2
4
3
80
3512 G06
1
0
20
40
60
100
5
TEMPERATURE (°C)
–50
4.75
V
OUT
(V)
4.80
4.90
4.95
5.00
5.25
5.10
0
50
75
3512 G01
4.85
5.15
5.20
5.05
–25
25
100 125
150
VIN = 48V
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