LTC3717-1 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC3717-1
Linear Technology
'LTC3717-1' PDF : 20 Pages View PDF
LTC3717-1
TYPICAL APPLICATIO
Typical Application 1.25V/±3A at 1.4MHz
CSS
0.1µF
CC1
470pF
RC
33k
CC2
100pF
CON, 0.01µF
RPG
100k
RUN/SS BOOST
PGOOD
TG
LTC3717-1
VRNG
SW
SENSE+
ITH
PGND
SENSE–
SGND
BG
VON
ION
INTVCC
DRVCC
VFB
VCC
VREF
EXTVCC
RON
92k
CIN, COUT: CORNELL DUBILIER ESRD121M04B
L1: TOKO A921CY-0R7M
DB
CMDSH-3
CB
0.22µF
CVCC
4.7µF
5V
1µF
M1
1/2 Si9802
L1
0.7µH
M2
1/2 Si9802
VIN
+
2.5V
CIN
120µF
4V
VOUT
1.25V
±3A
+ COUT
120µF
4V
3717 TA03
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Burst Mode is a registered trademark of Linear Technology Corporation.
20 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 q FAX: (408) 434-0507 q www.linear.com
COMMENTS
97% Efficiency; No Sense Resistor; 99% Duty Cycle
Power Good Output; Minimum Input/Output Capacitors;
3.5V ≤ VIN ≤ 36V
Synchronizable 150kHz to 300kHz
Up to 42A Output; 0.925V ≤ VOUT ≤ 2V
Up to 42A Output; VRM 8.4; 1.3V ≤ VOUT ≤ 3.5V
Burst ModeTM Operation; 16-Pin Narrow SSOP;
3.5V ≤ VIN ≤ 36V
Mobile VID; 0.925V ≤ VOUT ≤ 2V; 3.5V ≤ VIN ≤ 36V
Current Mode; 550kHz; Very Small Solution Size
Up to 95% Efficiency, 550kHz, 2.65V ≤ VIN ≤ 8.5V,
0.8V ≤ VOUT ≤ VIN, Synchronizable to 750kHz
4V ≤ VIN ≤ 36V, True Current Mode Control,
2% to 90% Duty Cycle
Current Mode; 550kHz; Small 16-Pin SSOP, VIN < 9.8V
2.6V ≤ VIN ≤ 36V, Power Good Output,
300kHz Operation
90% Efficiency, ±3A Output, 2MHz Operation
4V ≤ VIN ≤ 36V, True Current Mode Control,
2% to 90% Duty Cycle, 16-Pin SSOP, No RSENSE
sn37171 37171fs
LT/TP 0603 1K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2003
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