參數(shù)資料
型號: LT3958IUHE#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, PQCC36
封裝: 5 X 6 MM, LEAD FREE, PLASTIC, QFN-36
文件頁數(shù): 18/28頁
文件大?。?/td> 320K
代理商: LT3958IUHE#PBF
LT3958
25
3958f
TYPICAL APPLICATIONS
10V to 60V Input, 12V Output SEPIC Converter
Efciency vs Output Current
Load Step Waveforms
OUTPUT CURRENT (mA)
0
50
EFFICIENCY
(%)
65
60
55
70
75
80
85
90
200
400
600
800
3958 TA04b
1000
VIN = 24V
500μs/DIV
VOUT
0.5V/DIV
(AC)
IOUT
0.5A/DIV
0.8A
0.2A
3958 TA04c
VIN = 24V
Start-Up Waveforms
Frequency Foldback Waveforms
When Output Short-Circuit
5ms/DIV
VOUT
5V/DIV
IL1A + IL1B
2A/DIV
3958 TA04d
VIN = 24V
50μs/DIV
VOUT
10V/DIV
VSW
20V/DIV
IL1A + IL1B
2A/DIV
3958 TA04e
VIN = 24V
SENSE2
SENSE1
LT3958
L1A
L1B
VIN
SW
GND
FBX
RT
SS
INTVCC
EN/UVLO
SYNC
SGND
66.5k
VC
3958 TA04a
D1
392k
41.2k
300kHz
CVCC
4.7μF
10V
X5R
0.47μF
10k
10nF
105k
15.8k
CDC
2.2μF, 100V
X7R, 2
VOUT
12V
1A
VIN
10V TO 60V
CIN
2.2μF
100V
X5R
COUT
22μF
16V
X5R
2
CIN, CDC: MURATA GRM32ER72A225KA35L
COUT: MURATA GRM32ER61C226KE20
D1: VISHAY SILICONIX 10MQ100N
L1A, L1B: COILTRONICS DRQ125-220
相關(guān)PDF資料
PDF描述
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