參數(shù)資料
型號: LT3751IFE#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20
封裝: 4.40 MM, LEAD FREE, PLASTIC, TSSOP-20
文件頁數(shù): 24/34頁
文件大小: 403K
代理商: LT3751IFE#TRPBF
LT3751
30
3751fb
–IVOUT2, IVOUT3** (mA)
–V
OUT2
,V
OUT3
(V)
18
16
14
20
3751 TA07b
VIN = 24V
VIN = 12V
VIN = 5V
1
10
100
1000
**SOURCE/SINK IDENTICAL CURRENTS FROM BOTH VOUT2 AND VOUT3, RESPECTIVELY
Wide Input Voltage Range, 15 Watt, Triple Output Voltage Regulator
TYPICAL APPLICATIONS
DONE
FAULT
UVLO1
OVLO1
UVLO2
OVLO2
VCC
CHARGE
CLAMP
RDCM
RVOUT
HVGATE
LVGATE
FB
CSP
CSN
RVTRANS
D1
T1
2:1:3:3
(P1:S1:S2:S3)
VOUT3
+15V
VIN
5V TO 24V
VCC
3751 TA07a
LT3751
GND RBG
R5
25.5k
OFF ON
C4
470μF
C7
10μF
C1
10μF
C3
10μF
R12
4.99k
R7
25.5k
R6
11.5k
M1
R11
25mΩ
R10
100Ω
R8
3.40k
R9
309Ω
R4, 464k
R3, 66.5k
P1
S3
R2, 100k
R1, 100k
C1, C3: 25V X5R OR X7R CERAMIC
C2: 25V SANYO 25ME1000AX
C4, C5: 35V SANYO 35ME470AX
C6: 10V KEMET T520D107M010ASE055
C7, C8: 16V CERAMIC, TDK C4532X7R1E106M
C9: 6.3V CERAMIC, TDK C4532X5R0J107M
D1, D2: CENTRAL SEMI CMSH2-60M
D3: CENTRAL SEM1 CMSH5-40
M1: FAIRCHILD FQD12N20L
R1 THRU R10, R12, R13: 0805 RESISTOR, 1%
R11: 1206 RESISTOR, 1%
T1: COILCRAFT HA3994-AL, 2:1:3:3 (P1:S1:S2:S3)
D2
VOUT2
–15V
C5
470μF
C8
10μF
R13
4.99k
S2
D3
VOUT1
+5V
C6
100μF
2
C9
100μF
S1
+
C2
1000μF
2
+
–IVOUT2, IVOUT3** (mA)
–V
OUT2
,V
OUT3
(V)
22
24
20
18
16
14
26
3751 TA07c
VIN = 24V
VIN = 12V
VIN = 5V
1
10
100
1000
–IVOUT2 + IVOUT3 (mA)
0
EFFICIENCY
(%)
80
85
75
70
400
200
600
800
65
60
90
3751 TA07d
VIN = 24V
VIN = 12V
VIN = 5V
Cross Regulation
(IVOUT1 = 100mA)
Efciency
(IVOUT1 = 500mA)
Maximum Output Conditions
VCC
(V)
POUT(MAX)
(W)
IOUT(MAX)* (mA)
VOUT1
VOUT2
VOUT3
5
6.5
750
300
12
10
1750
300
24
13
2500
300
*All other output currents set to 0mA
Cross Regulation
(IVOUT1 = 500mA)
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