LTC3626_15 Datasheet, PDF (28/28 Pages) Linear Technology – 20V, 2.5A Synchronous Monolithic Step-Down Regulator with Current and Temperature Monitoring

LTC3626
Typical Application
12V Input to 1.8V Output, 2.5A Regulator with Digital Output Current Monitoring
V_IN
12V
C1
47µF
PV_IN
C2
SV_IN
1µF _RUN
BOOST
LTC3626
0.1µF
0.1µF
REFOUT COMP V_CC
IN
SCK
SDO LTC2460
CS
GND REF^–
0.1µF
C4
INTV_CC
ITH
SW
2.2µF
R_PGD
200k
TRACK/SS
TSET
V_ON
TMON
IMON_IN
FB
PGOOD
RT
IMON_OUT MODE/SYNC
C_IOUT ^RIOUT
1µF ^5.1k
SGND PGND
C_BST
0.1µF
L1
1.5µH
R_T
324k
C_F
R1
22pF
40.2k
R2
20k
3626 TA04
C_OUT
47µF
V_OUT
1.8V
2.5A
Related Parts
PART NUMBER
LTC3601
LTC3603
LTC3633
LTC3605A
LTC3604
DESCRIPTION
15V, 1.5A (I_OUT), 4MHz, Synchronous Step-Down DC/DC Converter
15V, 2.5A (I_OUT), 3MHz, Synchronous Step-Down DC/DC Converter
15V, Dual 3A (I_OUT), 4MHz, Synchronous Step-Down DC/DC
Converter
20V, 5A (I_OUT), 4MHz, Synchronous Step-Down DC/DC Converter
15V, 2.5A (I_OUT), 4MHz, Synchronous Step-Down DC/DC Converter
COMMENTS
95% Efficiency, V_IN: 4.5V to 15V, V_OUT(MIN) = 0.6V, I_Q = 300µA,
I_SD < 1µA, 4mm × 4mm QFN-20, MSOP-16E
95% Efficiency, V_IN: 4.5V to 15V, V_OUT(MIN) = 0.6V, I_Q = 75µA,
I_SD < 1µA, 4mm × 4mm QFN-20, MSOP-16E
95% Efficiency, V_IN: 3.6V to 15V, V_OUT(MIN) = 0.6V, I_Q = 500µA,
I_SD < 15µA, 4mm × 5mm QFN-28, MSOP-28E
95% Efficiency, V_IN: 4V to 20V, V_OUT(MIN) = 0.6V, I_Q = 2mA,
I_SD < 15µA, 4mm × 4mm QFN-24
95% Efficiency, V_IN: 3.6V to 15V, V_OUT(MIN) = 0.6V, I_Q = 300µA,
I_SD < 15µA, 3mm × 3mm QFN-16, MSOP-16E
28 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 950_Fo3_r5_m-7_o4_re1_i7_{nformation www.linear.com/LTC3626}
[phone] ^● FAX: [phone] ^● www.linear.com/LTC3626
3626fa
LT 0515 REV A • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2012