ZL9101M_15 Datasheet, PDF (1/67 Pages) Intersil Corporation – Digital DC/DC PMBus 12A Module

DATASHEET
Digital DC/DC PMBus 12A Module
ZL9101M
The ZL9101M is a 12A, variable output, step-down
PMBus-compliant digital power supply. Included in the module
is a high-performance digital PWM controller, power MOSFETs,
an inductor, and all the passive components required for a
highly integrated DC/DC power solution. This power module
has built-in auto-compensation algorithms, which eliminates
the need for manual compensation design work. The ZL9101M
operates over a wide input voltage range and supports an
output voltage range of 0.6V to 3.6V, which can be set by
external resistors or via PMBus. This high-efficiency power
module is capable of delivering 12A. Only bulk input and
output capacitors are needed to finish the design. The output
voltage can be precisely regulated to as low as 0.6V with ±1%
output voltage regulation over line, load, and temperature
variations.
The ZL9101M features auto compensation, internal soft-start,
auto-recovery overcurrent protection, an enable option, and
pre-biased output start-up capabilities.
The ZL9101M is packaged in a thermally enhanced, compact
(15mmx15mm) and low profile (3.5mm) overmolded QFN
package module suitable for automated assembly by standard
surface mount equipment. The ZL9101M is RoHS compliant.
Figure 1 represents a typical implementation of the ZL9101M.
For PMBus operation, it is recommended to tie the Enable pin
(EN) to SGND.
Features
• Complete digital switch mode power supply
• Fast transient response
• Auto compensating PID filter
• External synchronization
• Output voltage tracking
• Current sharing
• Programmable soft-start delay and ramp
• Overcurrent/undercurrent protection
• PMBus compliant
Applications
• Server, telecom, and datacom
• Industrial and medical equipment
• General purpose point-of-load
Related Literature
• See AN2034, “Configuring Current Sharing on the ZL2004
and ZL2006”
VDRV
4.5V TO 6.5V
10µF
16V
4.7µF
16V
10µF
4.7µF _16V
16V
POWER GOOD OUTPUT
ENABLE
EXT SYNC
DDC BUS
I²C/SMBus
RSA
PG
EN
SYNC
DDC
SCL
SDA
SA
RSET
ZL9101M
VIN
(EPAD)
VOUT
(EPAD)
SW
(EPAD)
PGND
(EPAD)
VIN
4.5V TO 13.2V
CIN
VOUT
COUT
RTN
FIGURE 1. A COMPLETE DIGITAL SWITCH MODE POWER SUPPLY, ONLY BULK INPUT AND OUTPUT CAPACITORS ARE REQUIRED TO FINISH THE
DESIGN
February 12, 2015
1
FN7669.5
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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