G5617A/G5617B PWM controller uses constant on-time control scheme to handle wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The G5617A/G5617B achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditio.
Ultra-High Efficiency No Current-Sense Resistor (Lossless ILIMIT) Quasi-PWM with 100ns Load-Step Response 1% VOUT Accuracy Over Line and Load 0.75V to 3.6V Adjustable Output Range Dynamic Voltage Scaling by G0 and G1 Inputs 4.5V to 24V Battery Input Range OVP & UVP Built-in BST Diode 1.7ms Soft-Start Drives Large Synchronous-Rectifier FETs Power-Good Indicator G0/G1 High Active (G5617A) G0/G1 Low Active (G5617B) Applications Notebook Computers CPU Core Supply Chipset/RAM Supply as Low as 0.75V 1.8V and 2.5V I/O Supply Networking Power Supply Ordering Inform.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | G5617B |
Global Mixed-mode Technology |
Programmable Output High-Speed Step-Down Controller | |
2 | G5616 |
Global Mixed-mode Technology |
Complete DDR / DDRII and DDRIII Memory Solution Synchronous Buck PWM Controller | |
3 | G5616A |
Global Mixed-mode Technology |
Complete DDR / DDRII and DDRIII Memory Solution Synchronous Buck PWM Controller | |
4 | G5601A |
Global Mixed-mode Technology |
High-Speed Step-Down Controller | |
5 | G5602 |
Global Mixed-mode Technology |
High-Speed Step-Down Controller | |
6 | G5603 |
Global Mixed-mode Technology |
High-Speed Step-Down Controller | |
7 | G5632 |
Global Mixed-mode Technology |
2A Buck Converter | |
8 | G5640 |
Global Mixed-mode Technology |
2.5A Buck Converter | |
9 | G5642 |
Global Mixed-mode Technology |
3A Buck Converter | |
10 | G5644 |
Global Mixed-mode Technology |
2.5A Buck Converter | |
11 | G5645 |
Hamamatsu Corporation |
GaAsP photodiode | |
12 | G5654 |
Global Mixed-mode Technology |
2A Step-down DC/DC |