1

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.

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

feature have been added.

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™”

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

• Output Voltage and Current Protection

• Internal Non-volatile Memory (NVM)

Applications

• Servers/Storage Equipment

• Telecom/Datacom Equipment

• Power Supply Modules

CURRENT

SENSE

LDO

TEMP

SENSOR

V

SS

VTRK

MGN

VR VDD

BST

GH

SW

ISENA

ISENB

POWER

DRIVER

XTEMP

PWM

GL

SCL

SDA

SALRT

SA

MANAGEMENT

EN PG

CFG UVLO

PH_EN

ILIM

FC

MONITOR

CONTROLLER

V25

SYNC

VSEN+

PGND SGND DGND

ADC

NON-

VOLATILE

MEMORY

DDC

VSEN-

FIGURE 1. BLOCK DIAGRAM

Load Current (A)

65

70

80

75

85

95

90

100

2

14

0

6

4

812

10

60

55

50

16 18

20

Circuit of Figure 4

FIGURE 2. EFFICIENCY vs LOAD CURRENT

3

December 19, 2013

FN6906.5

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

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.