LTC3879_15 Datasheet, PDF (23/28 Pages) Linear Technology – Fast, Wide Operating Range No RSENSE Step-Down Controller

TYPICAL APPLICATIONS
4.5V to 24V Input, 1.8V/10A Output at 500kHz
LTC3879
C_SS
0.1μF
R1 R2
10.0k 95.3k
1 _{TRACK/SS BOOST} 16
R_PG
100k
2
LTC3879
PGOOD
TG ¹⁵
D_B
CMDSH-3
C_B
0.22μF
C_C1
1000pF ^RC
13k
3 _VRNG
4 _MODE
5 _ITH
C_C2
100pF
6 _SGND
SW ¹⁴
PGND ¹³
BG ¹²
INV_CC ¹¹
C_VCC
4.7μF
R_FB1
10.0k
R_FB2 R_ON
20.0k 511k
7 _ION
8 _VFB
V_IN ¹⁰
RUN ⁹
C_{F RF}
0.1μF _2.2Ω
C_IN1
10μF
25V
M1
FDS8690
L1
0.8μH
+ C_IN2
56μF
25V
M2
FDS8670
C_OUT1
330μF
2.5V
+
C_OUT2
100μF
6.3V
V_IN
4.5V TO 24V
V_OUT
1.8V
10A
C_IN1: TDK C3225X5R1E106MT
C_OUT1: SANYO 2R5TPE330M9
C_OUT2: MURATA GRM31CR60J107ME39
L1: SUMIDA CDEP105NP-0R8MC-50
3879 TA03
4.5V to 32V Input, 1V/5A Output at 250kHz
C_SS
0.1μF
R1
R2
10.0k 76.8k
1 _{TRACK/SS BOOST} 16
R_PG
100k
2
LTC3879
PGOOD
TG ¹⁵
D_B
ZLLS1000
C_B
0.22μF
R_C
16.9k
C_C1
1000pF
3 _VRNG
4 _MODE
5 _ITH
C_C2
100pF
6 _SGND
SW ¹⁴
PGND ¹³
BG ¹²
INV_CC ¹¹
C_VCC
4.7μF
R_FB1
10.0k
R_FB2 R_ON
6.81k 576k
7 _ION
8 _VFB
V_IN ¹⁰
RUN ⁹
C_F R_F
0.1μF 2.2Ω
C_IN1
4.7μF
50V
M1
BSC093N04LS ^L1
2.2μH
+ C_IN2
22μF
35V
M2
C_OUT1 ⁺
BSC093N04LS ^330μF
2.5V
C_OUT2
47μF
6.3V
V_IN
4.5V TO 32V
V_OUT
1V
5A
C_IN1: MURATA GRM32ER71H475K
C_OUT1: SANYO 2R5TPE330M9
C_OUT2: TDK C3216X5R0J476M
L1: WURTH 744311220
3879 TA04
3879f
23