LT3724EFE-TRPBF Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LT3724EFE-TRPBF Datasheet PDF : 26 Pages
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LT3724
TYPICAL APPLICATION
VIN
18V TO 36V
R3
2M
0.1µF
R1
88.7k
CSS
1000pF
R2
10.2k
CC2
680pF
RCSS
200k
R6, 40.2k
CC1
120pF
D1 = BAV99
D2 = ON SEMI, MBRD350
L1 = COEV, DU1311-470M
M1 = VISHAY, Si7370DP
CIN1 = SANYO, 50CV220KX
COUT1 = SANYO, 16SVP330M
Inverting –12V 1.5A Converter
1 VIN
16
BOOST
LT3724
15
TG
3
SHDN
4
CSS
14
SW
12
VCC
6
7 VFB
VC
8
GND
11
PGND
SENSE+ 10
SENSE– 9
D1A
1µF
16V
0.1µF
16V
D1B
M1 L1
47µH
D2
RSENSE
0.040Ω
+ CIN1
220µF
50V
VOUT
–12V
1.5A
COUT1
330µF
16V
3724 TA05
RELATED PARTS
PART NUMBER
LT3845A
LTC3891
LT3844
LT3741
LTC3824
LTC3834/LTC3834-1
LTC3835/LTC3835-1
LTC3859
DESCRIPTION
60V, Low IQ, High Voltage Synchronous
Step-Down DC/DC Controller
60V, Low IQ, High Voltage Synchronous
Step-Down DC/DC Controller
60V, Low IQ, Single Output Step-Down
DC/DC Controller
High Power, Constant Current, Constant Voltage,
Step-Down Controller
60V, Low IQ, Step-Down DC/DC Controller with
100% Duty Cycle
Low IQ, Single Output Synchronous Step-Down
DC/DC Controller with 99% Duty Cycle
Low IQ, Triple Output Buck/Buck/Boost
Synchronous DC/DC Controller
COMMENTS
Adjustable Fixed Frequency 100kHz to 500kHz, 4V≤ VIN ≤ 60V, 1.23V ≤
VOUT ≤ 36V, IQ = 120µA, TSSOP-16
Phase-Lockable Fixed Frequency 50kHz to 900kHz, 4V ≤ VIN ≤ 60V, 0.8V
≤ VOUT ≤ 24V, IQ = 50µA
Synchronizable Fixed Frequency 50kHz to 600kHz, 4V≤ VIN ≤ 60V, 1.23V
≤ VOUT ≤ 36V, IQ = 120µA, TSSOP-16
Fixed 200kHz to 1MHz Operating Frequency, ±6% Current Regulation,
6V≤ VIN ≤ 36V, VOUT Up to (VIN - 2V)
Selectable Fixed Frequency 200kHz to 600kHz, 4V≤ VIN ≤ 60V, 0.8V ≤
VOUT ≤ VIN, IQ = 40µA, MSOP-10E
Phase-Lockable Fixed Frequency 140kHz to 650kHz, 4V≤ VIN ≤ 36V, 0.8V
≤ VOUT ≤ 10V, IQ = 30µA/80µA
All Outputs Remain in Regulation Through Cold Crank 2.5V≤ VIN ≤ 38V,
VOUT(BUCKS) Up to 24V, VOUT(BOOST) Up to 60V, IQ = 55µA
26 LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
3724fd
LT 0311 REV D • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2005
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