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
Description
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.
Applications
- Server, telecom, and datacom
- Industrial and medical equipment
- General purpose point of load
Support Communities
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The ZL9117M switching frequency detection failed
... frequency of 2000KHz come about, is it the upper and lower limits set inside the chip? Question 2: Will the 5% accuracy of the resistor cause the ZL9117M to fail the probability detection of switching frequency? Question 3: Is there any error in the process of ZL9117M detecting switching frequency?
Oct 11, 2022 -
ZL9117M circuit design
We are using the power chip ZL9117M and would like to ask some design questions about this chip. 1. In the actual design, we connect the VDD pin of ZL9117M to an external 5V power supply, and the VIN pin to an external 12V power supply, but according to the ...
Sep 29, 2022
Support Communities
