LTC3613 Datasheet, PDF (36/36 Pages) Linear Technology – 24V, 15A Monolithic Step Down Regulator

LTC3613
TYPICAL APPLICATION
High Frequency 5V, 4A, 1MHz Step-Down Converter
INTV_CC
R_PGD
100k
R_DIV1
0Ω
C_SS
0.1μF
PV_IN
PGOOD
SV_IN
MODE/PLLIN
V_RNG
RUN
EXTV_CC
V_OUT
SENSE^–
TRACK/SS SENSE⁺
C_ITH1
220pF RITH
20k
LTC3613 SW
ITH
R_T
40.2k
RT
SGND
BOOST
INTV_CC
PGND
V_OSNS+
V_OSNS–
R_VIN
2.2Ω
C_VIN
0.1μF
C_IN2 +
4.7μF
×2
C_IN1
47μF
35V
R_F2
10Ω
C_F
R_F1
1000pF 10Ω
L1
1.2μH
R_SENSE
10mΩ
C_B
0.1μF
V_IN
7V TO 24V
V_OUT
5V
4A
D_B
C_VCC ^INTVCC
4.7μF
C_FF
22pF
R_FB2
147k
R_FB1
20k
C_OUT1
22μF
×2
3613 TA10
C_IN1: KEMET T521X476M035ATE070
D_B: DIODES, INC. SDM10K45
L1: WÜRTH 744313120
100
90
80
70
60
50
40
30
20
10
0
0.01
Efficiency
PULSE-
SKIPPING
MODE
FORCED
CONTINUOUS
MODE
V_IN = 12V
V_OUT = 5V
0.10
1
10
LOAD CURRENT (A)
3613 TA11
RELATED PARTS
PART NUMBER DESCRIPTION
LTC3602
2.5A (I_OUT), 3MHz, Synchronous Step-Down DC/DC
Converter
LTC3608
18V, 8A (I_OUT), 1MHz, Synchronous Step-Down DC/DC
Converter
LTC3610
24V, 12A (I_OUT), 1MHz, Synchronous Step-Down DC/DC
Converter
LTC3611
32V, 10A (I_OUT), 1MHz, Synchronous Step-Down DC/DC
Converter
LTC3414/
LTC3416
4A (I_OUT), 4MHz, Synchronous Step-Down DC/DC
Converter
LTC3415
7A (I_OUT), 1.5MHz, Synchronous Step-Down DC/DC
Converter
LTC3418
8A (I_OUT), 4MHz, Synchronous Step-Down DC/DC
Converter
LTM4600HV 10A Complete Switch Mode Power Supply
LTM4601HV 12A Complete Switch Mode Power Supply
LTM4602HV 6A Complete Switch Mode Power Supply
LTM4603HV 6A Complete Switch Mode Power Supply
COMMENTS
95% Efficiency, V_IN: 4.5V to 10V, V_OUT(MIN) = 0.6V, I_Q = 75μA, I_SD <1μA,
4mm × 4mm QFN-20, TSSOP-16E Packages
95% Efficiency, V_IN: 4V to 18V, V_OUT(MIN) = 0.6V, I_Q = 900μA, I_SD <15μA,
7mm × 8mm QFN-52 Package
95% Efficiency, V_IN: 4V to 24V, V_OUT(MIN) = 0.6V, I_Q = 900μA, I_SD <15μA,
9mm × 9mm QFN-64 Package
95% Efficiency, V_IN: 4V to 32V, V_OUT(MIN) = 0.6V, I_Q = 900μA, I_SD <15μA,
9mm × 9mm QFN-64 Package
95% Efficiency, V_IN: 2.25V to 5.5V, V_OUT(MIN) = 0.8V, I_Q = 64μA, I_SD <1μA,
TSSOP20E Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.6V, I_Q = 450μA, I_SD <1μA,
5mm × 7mm QFN-38 Package
95% Efficiency, V_IN: 2.25V to 5.5V, V_OUT(MIN) = 0.8V, I_Q = 380μA, I_SD <1μA,
5mm × 7mm QFN-38 Package
92% Efficiency, V_IN: 4.5V to 28V, V_OUT: 0.6V, True Current Mode Control,
Ultrafast Transient Response
92% Efficiency, V_IN: 4.5V to 28V, V_OUT: 0.6V, True Current Mode Control,
Ultrafast Transient Response
92% Efficiency, V_IN: 4.5V to 28V, V_OUT: 0.6V, True Current Mode Control,
Ultrafast Transient Response
93% Efficiency, V_IN: 4.5V to 28V, with PLL, Output Tracking and Margining
36 LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
3613fa
LT 0712 REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2011