ZL9117M

Digital DC/DC PMBus 17A Module

OVERVIEW

The ZL9117M is a 17A, 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 eliminate the need for manual compensation design work. The ZL9117M 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 17A. 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 ZL9117M features auto-compensation, internal soft-start, auto-recovery overcurrent protection, an enable option, and prebiased output start-up capabilities.

The ZL9117M 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 ZL9117M is RoHS compliant.

For PMBus operation, it is recommended to tie the Enable pin (EN) to SGND.

KEY 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

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ZL9117M
Basic Information
Production Status
Mass Production
Input Voltage Min (V)
4.5
Input Voltage Max (V)
13.2
Output Voltage Min (V)
0.6
Output Voltage Max (V)
3.6
Output Current Max (A)
17
IQ
20 mA
Peak Efficiency (%)
94
POR
No
Switching Freq. (min) (MHz)
0.4
Switching Freq. (max) (MHz)
1
Control Type
Digital
SYNCH Capability
Yes
Current Sharing
Yes
Tracking
Yes
Digital
Yes
Qualification Level
Standard
Switching Frequency Range (MHz)
0.571
Temperature Range
-40 to +85

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