LTC3883 Datasheet, PDF (108/112 Pages) Linear Technology – Single Phase Step-Down DC/DC Controller with Digital Power System Management

LTC3883/LTC3883-1
Typical ApplicationS
High Efficiency 425kHz 1V Step-Down Converter with Power Block
V_IN
7V TO 14V
5mΩ
100Ω _1µF
3Ω ^10nF
10µF
PMBus
INTERFACE
V_DD33
10µF
INTV_CC
100Ω
10nF
BOOST
TG
I_{IN_SNS}
V_{IN_SNS}
LTC3883
V_IN
BG
SW
10k
SDA
PGND
10k
SCL
WP
10k
SHARE_CLK
10k
ALERT V_{OUT_CFG}
10k
RUN V_{TRIM_CFG}
10k
PGOOD
10k
ASEL
GPIO FREQ_CFG
5k
SYNC
TSNS
I_SENSE+
1.0µF
I_SENSE–
V_DD25
V_SENSE+
V_DD33
V_SENSE–
I_TH
GND
1.0µF
22µF
1µF
50V
7V
GATE DRIVE
V_IN
PWMH V_OUT
P1
V_GATE
CS^–
CS⁺
TEMP⁺
PWML TEMP^–
GND
V_DD25
24.9k 20k
16.2k
4.32k 17.8k
17.4k
1µF
0.22µF
1.2k
1000pF
5.62k
100pF
V_OUT
1V
+
35A
C_OUT
530µF
C_OUT: 330μH SANYO 4TPF330ML, 2× 100µF AVX 12106D107KAT2A
P1: VRA001-4C3G ACBEL POWER BLOCK
3883 TA05
3883f
108