LTC3605A_15 Datasheet, PDF (22/22 Pages) Linear Technology – 20V, 5A Synchronous Step-Down Regulator

LTC3605A
Typical Application
–3.6V Negative Converter
162k
16.2k
470pF
47pF
C1
2.2µF
0.1µF
D1
10Ω
24
23
22 21 20 19
CLKIN CLKOUT SGND INTV_CC BOOST SV_IN
1
18
RT
PV_IN
2
PHMODE
17
PV_IN
3
MODE
4
FB
LTC3605A
16
SW
15
SW
5
TRACK/SS
14
SW
6
I_TH
0.1µF _{RUN PGOOD VON PGND SW}
13
SW
SW
7
8
9
10 11 12
SV_IN
100k
C_IN
22µF
×2
V_IN
3V TO 16V
0.1µF
L1 1µH
C_OUT
47µF
×2
24.9k
4.99k
3605A TA05
V_OUT
–3.6V
2A
–3.6V Negative Converter Efficiency
100
90
80 DCM
70
60
CCM
50
40
30
20
10
0
0.01
0.1
1
LOAD CURRENT (A)
10
3605A TA05b
–3.6V Negative Converter
SW
I_L
2A/DIV
V_IN = 12V
V_OUT = –3.6V
I_LOAD = 2A
400ns/DIV
3605A TA05c
Related Parts
PART NUMBER DESCRIPTION
COMMENTS
LTC3605
LTC3603
LTC3414/
LTC3416
LTC3415
LTC3608
LTC3610
LTC3611
15V, 5A (I_OUT), 4MHz, Synchronous Step-Down DC/DC Converter
15V, 2.5A (I_OUT), 3MHz, Synchronous Step-Down DC/DC Converter
4A (I_OUT), 4MHz, Synchronous Step-Down DC/DC Converters
7A (I_OUT), 1.5MHz, Synchronous Step-Down DC/DC Converter
18V, 8A (I_OUT) 1MHz, Synchronous Step-Down DC/DC Converter
24V, 12A (I_OUT), 1MHz, Synchronous Step-Down DC/DC Converter
32V, 10A (I_OUT), 1MHz, Synchronous Step-Down DC/DC Converter
95% Efficiency, V_IN: 4V to 15V, V_OUT(MIN) = 0.6V, I_Q = 2mA,
I_SD < 1µA, 4mm × 4mm QFN-24
95% Efficiency, V_IN: 4.5V to 15V, V_OUT(MIN) = 0.6V, I_Q = 75µA,
I_SD < 1µA, 3mm × 3mm QFN-16, MSE16
95% Efficiency, V_IN: 2.25V to 5.5V, V_OUT(MIN) = 0.8V, I_Q = 64µA,
I_SD < 1µA, TSSOP-20E
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.6V, I_Q = 450µA,
I_SD < 1µA, 5mm × 7mm QFN-38
95% Efficiency, V_IN: 4V to 18V, V_OUT(MIN) = 0.6V, I_Q = 900µA,
I_SD < 15µA, 7mm × 8mm QFN-52
95% Efficiency, V_IN: 4V to 24V, V_OUT(MIN) = 0.6V, I_Q = 900µA,
I_SD < 15µA, 9mm × 9mm QFN-64
95% Efficiency, V_IN: 4V to 32V, V_OUT(MIN) = 0.6V, I_Q = 900µA,
I_SD < 15µA, 9mm × 9mm QFN-64
3605afc
22 Linear Technology Corporation
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[phone] ^● FAX: [phone] ^● www.linear.com/LTC3605A
LT 0415 REV C • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2012