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ZL6105ALAFTR5546

Description
IC reg ctrlr buck pwm VM 36-qfn
Categorysemiconductor    Power management   
File Size671KB,35 Pages
ManufacturerIntersil ( Renesas )
Websitehttp://www.intersil.com/cda/home/
Environmental Compliance  
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ZL6105ALAFTR5546 Overview

IC reg ctrlr buck pwm VM 36-qfn

Digital DC/DC Controller with Drivers and Auto
Compensation
ZL6105
The ZL6105 is a digital power controller with integrated
MOSFET drivers. Auto compensation eliminates the need for
manual compensation design work. Adaptive performance
optimization algorithms improve power conversion efficiency.
Zilker Labs Digital-DC™ technology enables a blend of power
conversion performance and power management features.
The ZL6105 is designed to be a flexible building block for DC
power and can be easily adapted to designs ranging from a
single-phase power supply operating from a 3.3V to a
multiphase current sharing supply operating from a 12V input.
The ZL6105 eliminates the need for complicated power supply
managers as well as numerous external discrete components.
The ZL6105 uses the I
2
C/SMBus™ with PMBus™ protocol for
communication with a host controller and the Digital-DC bus
for communication between Zilker Labs devices.
The ZL6105 is pin for pin compatible with the ZL2008. The
POLA V
OUT
table and compensation table have been removed.
A new single resistor V
OUT
table and the Auto Compensation
feature have been added.
Features
Power Conversion
• Efficient Synchronous Buck Controller
• Auto Compensating PID Filter
• Adaptive Light Load Efficiency Optimization
• 3V to 14V Input Range
• 0.54V to 5.5V Output Range (with margin)
• ±1% Output Voltage Accuracy
• Internal 3A MOSFET Drivers
• Fast Load Transient Response
• Current Sharing and Phase Interleaving
Snapshot™
Parameter Capture
• Pb-Free (RoHs Compliant)
Power Management
• Digital Soft-start/stop
• Power-Good/Enable
• Voltage Tracking, Sequencing and Margining
• Voltage, Current and Temperature Monitoring
• I
2
C/SMBus Interface, PMBus Compatible
• Output Voltage and Current Protection
• Internal Non-volatile Memory (NVM)
Related Literature
AN2032,
“NLR Configuration for DDC Products”
AN2033,
“Zilker Labs PMBus Command Set - DDC Products”
AN2034,
“Configuring Current Sharing on the ZL2004 and
ZL2006”
AN2035,
“Compensation Using CompZL™”
Applications
• Servers/Storage Equipment
• Telecom/Datacom Equipment
• Power Supply Modules
EN PG PH_EN FC ILIM CFG UVLO V25
VR VDD
100
95
V
OUT
= 3.3V
V
OUT
= 1.5V
POWER
MANAGEMENT
DRIVER
NON-
VOLATILE
MEMORY
PWM
CONTROLLER
DDC
BST
GH
SW
GL
VSEN+
VSEN-
ISENA
ISENB
Efficiency (%)
V
SS
VTRK
MGN
SYNC
90
LDO
85
80
75
70
65
60
55
50
0
V
IN
= 12V
f
SW
= 400kHz
Circuit of Figure
3
4
2
4
6
8
10
12
14
16
18
20
CURRENT
SENSE
TEMP
SENSOR
SCL
SDA
SALRT
I
2
C
MONITOR
ADC
SA
XTEMP
PGND SGND DGND
Load Current (A)
FIGURE 1. BLOCK DIAGRAM
December 19, 2013
FN6906.5
FIGURE 2. EFFICIENCY vs LOAD CURRENT
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Copyright Intersil Americas Inc. 2011-2013. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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