zl2106 Intersil Corporation, zl2106 Datasheet - Page 9

• Manufacturer Part Number: zl2106
• Description: 6a Digital-dc Synchronous Step-down Dc-dc Converter
• Manufacturer: Intersil Corporation

Table 4. Pin Descriptions (continued)
Notes:
1. I = Input, O = Output, PWR = Power or Ground, M = Multi-mode pins. Please refer to Section 5.4 “Multi-mode Pins,” on
27-29
ePad
Pin
page 13.
30
31
32
33
34
35
36
VDDP
VDDS
SGND
Label
MGN
V2P5
VRA
DDC
VR
EN
9
Type
PWR
PWR
PWR
PWR
PWR
PWR
I/O
I
I
1
Description
Bias supply voltage for internal switching MOSFETs (return is PGND).
IC supply voltage (return is SGND).
Regulated bias from internal 7 V low-dropout regulator (return is PGND). Decouple
with a 4.7 µF capacitor to PGND.
Regulated bias from internal 5 V low-dropout regulator for internal analog circuitry
(return is SGND). Decouple with a 4.7 µF capacitor to SGND.
Regulated bias from internal 2.5 V low-dropout regulator for internal digital circuitry
(return is DGND). Decouple with a 10µF capacitor.
Digital-DC Bus (open drain). Interoperability between Zilker Labs devices.
Margin pin. Used to enable margining of the output voltage.
Enable pin. Used to enable the device (active high).
Exposed thermal pad. Common return for analog signals. Connect to low impedance
ground plane.
ZL2106
Data Sheet Revision 2/19/2009
www.intersil.com