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ZL2106 Datasheet PDF : 29 Pages
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DATASHEET
ZL2106
6A Digital-DC Synchronous Step-Down DC/DC Converter
FN6852
Rev 6.00
February 20, 2013
The ZL2106 is a digital power conversion and management IC
that combines an integrated synchronous step-down DC/DC
converter with key power management functions in a small
package, resulting in a flexible and integrated solution.
The ZL2106 can provide an output voltage from 0.54V to 5.5V
(with margin) from an input voltage between 4.5V and 14V.
Internal low rDS(ON) synchronous power MOSFETs enable the
ZL2106 to deliver continuous loads up to 6A with high
efficiency. An internal Schottky bootstrap diode reduces
discrete component count. The ZL2106 also supports phase
spreading to reduce system input capacitance.
Power management features such as digital soft-start delay
and ramp, sequencing, tracking, and margining can be
configured by simple pin-strapping or through an on-chip serial
port. The ZL2106 uses the PMBus™ protocol for
communication with a host controller and the Digital-DC bus
for interoperability between other Zilker Labs devices.
Features
• Integrated MOSFET switches
• 6A continuous output current
• ±1% output voltage accuracy
• Snapshot™ parametric capture
• I2C/SMBus interface, PMBus compatible
• Internal non-volatile memory (NVM)
Applications
• Telecom, Networking, Storage equipment
• Test and Measurement equipment
• Industrial control equipment
• 5V and 12V distributed power systems
Related Literature
• AN1468 “ZL2106EVAL1Z Evaluation Board”, USB Adapter
Board, GUI Software
• AN2010 “Thermal and Layout Guidelines for Digital-DC™
Products”
• AN2033 “Zilker Labs PMBus Command Set-DDC
ProductsPMBus Command Set”
• AN2035 “Compensation Using CompZL™”
100
VOUT = 3.3V
90
80
70
60
VIN = 12V
50
fSW = 200kHz
L = 6µH
40
0.0
1.0
2.0
3.0
4.0
5.0
6.0
IOUT (A)
FIGURE 1. ZL2106 EFFICIENCY
FN6852 Rev 6.00
February 20, 2013
Page 1 of 29
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