G5603RU1U Datasheet PDF learn more.
Part number : G5603RU1U
Functions : This is a kind of semiconductor, High-Speed Step-Down Controller.
Pin arrangement :
Package information :
Manufacturer : Global Mixed-mode Technology
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Global Mixed-mode Technology Inc. G5603 High-Speed Step-Down Controller
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 4.5V to 24V Battery Input Range Integrated Boost Diode OVP & UVP 1.7ms Soft-Start Drives Large Synchronous-Rectifier FETs Power-Good Indicator Applications Notebook Computers CPU Core Supply I/O Supply Chipset/RAM Supply as Low as 0.75V Networking Power Supply General
Description
G5603 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 G5603 achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current-mode PWMs. Efficiency is further enhanced by an ability to drive very large synchronous rectifier MOSFETs. Single-stage buck conversion allows these devices to directly step down high-voltage batteries for the highest possible efficiency. Alternatively, two-stage conversion (stepping down the +5V system supply instead of the battery) at a higher switching frequency allows the minimum possible physical size. The G5603 is intended for CPU core, chipset, DRAM, or other low-voltage supplies as low as 0.75V. The G5603 is available in TSSOP-14 、 TQFN3X3-16 and TQFN3.5X3.5-14 package and includes over voltage protection. Ordering Information ORDER NUMBER MARKING G5603D21U G5603 G5603R41U 5603 G5603RU1U 5603 Note: D2: TSSOP-14 RU: TQFN3.5×3.5-14 R4: TQFN3X3-16 1: Bonding Code U : Tape & Reel TEMP. RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C Pin Configuration PACKAGE (Green) TSSOP-14 TQFN3X3-16 TQFN3.5×3.5-14 13 DH 12 LX 11 ILIM 10 VDD 9 DL 16 TON 15 EN_SKIP 14 NC 13 BST EN_SKIP 1 TON 2 OUT 3 VCC 4 FB 5 PGOOD 6 AGND 7 G5 [ … ]
G5603RU1U PDF File
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