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ZL9101M Datasheet(PDF) 2 Page - Intersil Corporation

Part No. ZL9101M
Description  Digital DC/DC PMBus 12A Module
Download  17 Pages
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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ZL9101M Datasheet(HTML) 2 Page - Intersil Corporation

 
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ZL9101M
2
FN7669.1
January 26, 2011
Pin Configuration
ZL9101M
(21 LD QFN)
TOP VIEW
SDA
VSET
VTRK
FB+
FB-
PGND
V25
VDD
VDRV
SW
VIN
PGND
VOUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
PIN
LABEL
TYPE
DESCRIPTION
1SDA
I/O
Serial data.
2SCL
I/O
Serial clock.
3
SA
I
Serial address select pin. Used to assign unique SMBus address to each module.
4
SYNC
I/O
Clock synchronization. Used for synchronization to external frequency reference.
5
PG
O
Power-good output.
6
EN
I
Enable input (factory setting active high). Pull-up to enable PWM switching and pull-down to disable PWM switching.
7
DDC
I/O
Digital-DC bus. (open drain) Interoperability between Zilker Labs modules.
8
VR
PWR Internal 5V reference used to power internal drivers.
9
SGND
PWR Signal ground. Connect to low impedance ground plane.
10
PGND
PWR Power ground. Connect to low impedance ground plane.
11
V25
PWR Internal 2.5V reference used to power internal circuitry.
12
VDD
PWR Input supply voltage for controller.
13
VDRV
PWR Power supply for internal FET drivers. Connect 10μF bypass capacitor to this pin.
14(epad)
SW
PWR Drive train switch node
15(epad)
VIN
PWR Power supply input FET voltage.
16(epad)
PGND
PWR Power ground. Connect to low impedance ground plane.
17(epad)
VOUT
PWR Power supply output voltage. Output voltage from PWM.
18
FB-
I
Output voltage feedback. Connect to load return of ground regulation point.
19
FB+
I
Output voltage feedback. Connect to output regulation point.
20
VTRK
I
Tracking sense input. Used to track an external voltage source.
21
VSET
I
Output voltage selection pin. Used to set VOUT set point and VOUT max.


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