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SMB119 Datasheet(PDF) 5 Page - Summit Microelectronics, Inc.

Part # SMB119
Description  Seven-Channel Programmable DC-DC Power Manager
PDF  34 Pages
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Manufacturer  SUMMIT [Summit Microelectronics, Inc.]
Direct Link  http://www.summitmicro.com
Logo SUMMIT - Summit Microelectronics, Inc.

SMB119 Datasheet(HTML) 5 Page - Summit Microelectronics, Inc.

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SMB119
Summit Microelectronics, Inc
5
PIN DESCRIPTIONS (Continued)
Pin
Number
Pin Name
Pin Type
Pin Description
26
VBATT
Power
Power Input for Controller. Connect to +2.7V to +6.0V voltage
source
27
COMP1
Input
Boost converter 1 compensation pin. Connect to R/C compensation
network
28
CSH1
Input
Boost converter 1 current sense high. Connect to high side of sense
resistor
29
CSL1
Input
Boost converter 1 current sense low. Connect to low side of sense
resistor
30
FB1
Input
Boost converter 1 feedback pin. Connect to external resistor divider
31
DRVL1
Output
Boost converter 1 low-side drive. Connect to NFET gate
32
DRVL2
Output
Boost converter 2 low-side drive. Connect to NFET gate
33
FB2
Input
Boost converter 2 feedback pin. Connect to external resistor divider
34
CSH2
Input
Boost converter 2 current sense high. Connect to high side of sense
resistor
35
CSL2
Input
Boost converter 2 current sense low. Connect to low side of sense
resistor
36
COMP2
Input
Boost converter 2 compensation pin. Connect to R/C compensation
network
37
PCHSEQ2
Output
Boost converter 2 sequence. Connect to PFET gate for boost
channel on/off and sequencing. Must be tied to ground when
unused.
38
LDOIN3
Power
LDO Power Input. Connect to +2.7V to +6.0V to supply internal LDO
39
LDOOUT3
Input/Output
LDO Output/Feedback
40
SW5
Input/Output
Buck converter 5 switch pin. Connect to drains of NFET
41
VIN5
Power
Buck Converter 5 Power. Connect to +2.7V to +6.0V to supply
internal PFET
42
DRVL5
Output
Buck converter 5 low-side drive. Connect to NFET gate
43
FB5
Input
Buck converter 5 feedback pin. Connect directly to output
44
COMP5
Input
Buck converter 5 compensation pin. Connect to type 2 R/C
compensation network
45
SHDN
Input
Shutdown. Active high, disables all functions of the SMB119 for low
power operation. SHDN is bypassed when DOCK_DC is present.
46
SDA
Input/Output
I
2C Data
47
SCL
Input
I
2C Clock
48
nALERT
Output
Fault Interrupt. Latched, open drain active low output. Flag for all
fault conditions (multiplexed)
PAD
DRVGND
Ground
Power Ground. Internally connect to under package pad. Connect
to isolated PCB ground plane/flood



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