参数资料
型号: LT3724IFE#PBF
厂商: Linear Technology
文件页数: 26/26页
文件大小: 0K
描述: IC REG CTRLR BST INV PWM 16TSSOP
标准包装: 95
PWM 型: 电流模式
输出数: 1
频率 - 最大: 225kHz
占空比: 100%
电源电压: 4 V ~ 60 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 16-TSSOP(0.173",4.40mm)裸露焊盘
包装: 管件
LT3724
TYPICAL APPLICATION
Inverting –12V 1.5A Converter
R1
88.7k
R2
10.2k
V IN
18V TO 36V
C SS
1000pF
C C2
680pF
R3
2M
0.1μF
R CSS
200k
R6, 40.2k
C C1
120pF
1
3
4
6
7
8
V IN
SHDN
C SS
V FB
V C
GND
BOOST
LT3724 TG
SW
V CC
PGND
SENSE +
SENSE –
16
15
14
12
11
10
9
D1A
1μF
16V
0.1μF
16V
D1B
M1
L1
47μH
D2
R SENSE
0.040 ?
+
C IN1
220μF
50V
V OUT
–12V
1.5A
C OUT1
330μF
16V
D1 = BAV99
D2 = ON SEMI, MBRD350
L1 = COEV, DU1311-470M
M1 = VISHAY, Si7370DP
C IN1 = SANYO, 50CV220KX
C OUT1 = SANYO, 16SVP330M
RELATED PARTS
3724 TA05
PART NUMBER
LT3845A
LTC3891
LT3844
LT3741
LTC3824
LTC3834/LTC3834-1
LTC3835/LTC3835-1
LTC3859
DESCRIPTION
60V, Low I Q , High Voltage Synchronous
Step-Down DC/DC Controller
60V, Low I Q , High Voltage Synchronous
Step-Down DC/DC Controller
60V, Low I Q , Single Output Step-Down
DC/DC Controller
High Power, Constant Current, Constant Voltage,
Step-Down Controller
60V, Low I Q , Step-Down DC/DC Controller with
100% Duty Cycle
Low I Q , Single Output Synchronous Step-Down
DC/DC Controller with 99% Duty Cycle
Low I Q , Triple Output Buck/Buck/Boost
Synchronous DC/DC Controller
COMMENTS
Adjustable Fixed Frequency 100kHz to 500kHz, 4V≤ V IN ≤ 60V, 1.23V ≤
V OUT ≤ 36V, I Q = 120μA, TSSOP-16
Phase-Lockable Fixed Frequency 50kHz to 900kHz, 4V ≤ V IN ≤ 60V, 0.8V
≤ V OUT ≤ 24V, I Q = 50μA
Synchronizable Fixed Frequency 50kHz to 600kHz, 4V≤ V IN ≤ 60V, 1.23V
≤ V OUT ≤ 36V, I Q = 120μA, TSSOP-16
Fixed 200kHz to 1MHz Operating Frequency, ±6% Current Regulation,
6V≤ V IN ≤ 36V, V OUT Up to (V IN - 2V)
Selectable Fixed Frequency 200kHz to 600kHz, 4V≤ V IN ≤ 60V, 0.8V ≤
V OUT ≤ V IN , I Q = 40μA, MSOP-10E
Phase-Lockable Fixed Frequency 140kHz to 650kHz, 4V≤ V IN ≤ 36V, 0.8V
≤ V OUT ≤ 10V, I Q = 30μA/80μA
All Outputs Remain in Regulation Through Cold Crank 2.5V≤ V IN ≤ 38V,
V OUT(BUCKS) Up to 24V, V OUT(BOOST) Up to 60V, I Q = 55μA
3724fd
26 Linear Technology Corporation
(408) 432-1900 ● FAX : (408) 434-0507 www.linear.com
1630 McCarthy Blvd., Milpitas, CA 95035-7417
LT 0311 REV D ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2005
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