LTC3711 Datasheet, PDF (24/24 Pages) Linear Technology – 5-Bit Adjustable, Wide Operating Range, No RSENSE

LTC3711
TYPICAL APPLICATIO
1.5V/15A All Ceramic C_OUT
C_SS
0.1µF
C_C1
2.2nF RC
4.7k
R_ON
330k
R_PG
100k
C_C2
100pF
C_FB 100pF
1
VID2
24
VID1
2
RUN/SS
23
VID0
3
V_ON
4
PGOOD
22
BOOST
21
TG
5
V_RNG
20
SW
6
FCB
SENSE^{+ 19}
LTC3711
7
I_TH
18
PGND
8
SGND
17
BG
9
I_ON
16
INTV_CC
10
V_FB
15
V_IN
11
14
V_OSENSE EXTV_CC
12
VID3
13
VID4
D_B
CMDSH-3
C_B
0.33µF
C_VCC
4.7µF
R_F
1Ω
C_F
0.1µF
M1
IRF7811A
M2
IRF7811A
×2
L1
1µH
D1
UPS840
C_IN
22µF
V_IN
7V TO 24V
50V
×3
V_OUT
1.5V
15A
+ ^COUT
47µF
10V
×8
C_IN: UNITED CHEMICON THCR70EIH226ZT
C_OUT: TAIYO YUDEN LMK550BJ476MM, 1.5V/15A ALL CERAMIC
L1: SUMIDA CEP125-IR0MC-H
3711 TA01
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PART NUMBER DESCRIPTION
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Burst Mode is a registered trademark of Linear Technology Corporation.
24 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^q FAX: [phone] ^q www.linear.com
COMMENTS
97% Efficiency, No Sense Resistor, 16-Pin SSOP
Power Good Output, Minimum Input/Output Capacitors,
3.5V ≤ V_IN ≤ 36V
Synchronizable 150kHz to 300kHz
Up to 42A Output, 0.925V ≤ V_OUT ≤ 2V
Up to 42A Output, VRM 8.4, 1.3V ≤ V_OUT ≤ 3.5V
Burst Mode^® Operation, 16-Pin Narrow SSOP,
3.5V ≤ V_IN ≤ 36V
Mobile VID, 0.925V ≤ V_OUT ≤ 2V, 3.5V ≤ V_IN ≤ 36V
Current Mode, 550kHz, Very Small Solution Size
Up to 95% Efficiency; 550kHz, 2.65V ≤ V_IN ≤ 8.5V,
0.8V ≤ V_OUT ≤ V_IN, Synchronizable to 750kHz
No Sense Resistor Required, 4V ≤ V_IN ≤ 36V,
0.8V ≤ V_OUT ≤ (0.9) V_IN
Current Mode; 550kHz; Small 16-Pin SSOP, V_IN < 9.8V
3.5V ≤ V_IN ≤ 36V, Power Good Output, 300kHz Operation
0.6V ≤ V_OUT ≤ 1.75V, 4V ≤ V_IN ≤ 36V, ±1% 0.6V Reference
600kHz per Phase, ±5% Output Current Matching,
Integrated Drivers, SSOP-36
3711f
LT/TP 1202 2K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2001