LTC3883 Datasheet, PDF (107/112 Pages) Linear Technology – Single Phase Step-Down DC/DC Controller with Digital Power System Management

LTC3883/LTC3883-1
Typical Applications
V_IN
6V TO 14V
5V_IN
High Efficiency 500kHz 1.2V Step-Down Converter with External V_CC
5mΩ
10µF
EXTV_CC
100Ω 1µF 100Ω
TG
LTC3883-1
10nF
10nF
I_{IN_SNS}
V_{IN_SNS}
BOOST
SW
BG
3Ω
PGND
10µF
PMBus
INTERFACE
V_DD33
1.0µF
V_IN
10k
PGOOD ^FREQ_CFG
10k
SDA
10k
SCL
V_{OUT_CFG}
10k
ALERT ^VTRIM_CFG
10k
RUN
ASEL
10k
SHARE_CLK
10k
GPIO
5k
SYNC
WP
I_SENSE+
I_SENSE–
V_SENSE+
V_SENSE–
V_DD25
TSNS
V_{DD33 GND} ^ITH
1.0µF
22µF
1µF
50V
D1
M1
0.1µF
M2 _VDD25
0.32µH
20k
24.9k 10k
20k
1k
12.7k 4.32k 23.2k 17.8k
1µF
6800pF MMBT3906
10k
10nF
1k
0.22µF
C_OUT: 330μH SANYO 4TPF330ML,
2× 100µF AVX 12106D107KAT2A
D1: CENTRAL CMDSH-3TR
L: PULSE PA 0515.321NLT 0.32µH
M1: INFINEON BSC032NE2LS
M2: INFINEON BSC009NE2LS
V_OUT
1.2V
+
20A
C_OUT
530µF
3883 TA06
High Efficiency 500kHz 2.5V Step-Down Converter with Sense Resistor, No Input Current Sense
V_IN
6V TO 24V
10µF
INTV_CC
TG
LTC3883
I_{IN_SNS} BOOST
V_{IN_SNS}
SW
V_IN
10µF
BG
PGND
PMBus
INTERFACE
V_DD33
1.0µF
10k
PGOOD
10k
10k
SDA _{FREQ_CFG}
SCL
10k
V_{OUT_CFG}
10k
ALERT _{VTRIM_CFG}
RUN
10k
ASEL
SHARE_CLK
10k
GPIO
I_SENSE+
5k
SYNC
I_SENSE–
WP
V_SENSE+
V_SENSE–
V_DD25
TSNS
V_DD33
I_TH
GND
1.0µF
D1
0.1µF
22µF
1µF
50V
M1
0.56µH
M2
V_DD25
0.002Ω
20k
20k 20k
12.7k 15k 17.8k
30Ω
1000pF 30Ω
4700pF MMBT3906
6.81k
10nF
V_OUT
2.5V
+
15A
C_OUT
530µF
3883 TA04
C_OUT: 330μH SANYO 4TPF330ML,
L: VISHAY IHLP4040DZ01 0.56μH
2× 100µF AVX 12106D107KAT2A M1: INFINEON BSC050N03LSG
D1: CENTRAL CMDSH-3TR
M2: INFINEON BSC011N03LSI
3883f
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