G5617A Datasheet PDF - Global Mixed-mode Technology
| Part Number | G5617A | |
| Description | Programmable Output High-Speed Step-Down Controller | |
| Manufacturers | Global Mixed-mode Technology | |
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Global Mixed-mode Technology
G5617A/G5617B
Programmable Output High-Speed Step-Down
Controller for Notebook Computer
Features
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 Information
ORDER
NUMBER
G5617AR41U
G5617BR41U
Note:R4:TQFN3X3-16
1: Bonding Code
U: Tape & Reel
Pin Configuration
MARKING
5617A
5617B
General Description
G5617A/G5617B PWM controller uses constant
on-time control scheme to handle wide input/output
voltage ratios with ease and provides 100ns “in-
stant-on” response to load transients while maintaining
a relatively constant switching frequency. The
G5617A/G5617B achieves high efficiency at a re-
duced cost by eliminating the current-sense resistor
found in traditional current-mode PWMs. Efficiency is
further enhanced by an ability to drive very large syn-
chronous rectifier MOSFETs. Single-stage buck con-
version allows these devices to directly step down
high-voltage batteries for the highest possible effi-
ciency. Alternatively, two-stage conversion (stepping
down the +5V system supply instead of the battery) at
a higher switching frequency allows the minimum pos-
sible physical size. The G5617A/G5617B is intended
for CPU core, chipset, DRAM, or other low-voltage
supplies as low as 0.75V. It provides four resis-
tor-programmable output voltages by G0 and G1 digi-
tal inputs.
The G5617A/G5617B is available in 16-pin TQFN (3X3)
package.
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
PACKAGE
(Green)
TQFN3X3-16
TQFN3X3-16
OUT 1
VCC 2
FB 3
PGOOD 4
17 GND
Thermal
Pad
12 DH
11 LX
10 ILIM
9 VDD
Ver: 1.0
Nov 09, 2011
G5617A/G5617B TQFN3X3-16
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
TEL: 886-3-5788833
http://www.gmt.com.tw
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for G5617A electronic component. |
| Information | Total 1 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ G5617A.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| G5617A | The function is Programmable Output High-Speed Step-Down Controller. Global Mixed-mode Technology | |
| G5617B | The function is Programmable Output High-Speed Step-Down Controller. Global Mixed-mode Technology | |
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