ZL2106_10 Datasheet, PDF (1/29 Pages) Intersil Corporation – 6A Digital-DC Synchronous Step-Down DC/DC Converter

6A Digital-DC Synchronous Step-Down DC/DC
Converter
ZL2106
The ZL2106 is an innovative 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 r_DS(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*(see page 28)
• Telecom, Networking, Storage equipment
• Test and Measurement equipment
• Industrial control equipment
• 5V and 12V distributed power systems
Related Literature*(see page 28)
• See AN1468 “ZL2106EVAL1Z Evaluation Board”, USB
Adapter Board, GUI Software
• See AN2010 “Thermal and Layout Guidelines for
Digital-DC™ Products”
• See AN2033 “Zilker Labs PMBus Command Set-DDC
ProductsPMBus Command Set”
• See AN2035 “Compensation Using CompZL™”
100
90
V_OUT = 3.3V
80
70
60
V_IN = 12V
50
f_SW = 200kHz
L = 6µH
40
0.0
1.0
2.0
3.0
4.0
5.0
6.0
I_OUT (A)
FIGURE 1. ZL2106 EFFICIENCY
February 11, 2010
FN6852.2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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