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What is G5603R41U?

This electronic component, produced by the manufacturer "Global Mixed-mode Technology", performs the same function as "High-Speed Step-Down Controller".


G5603R41U Datasheet PDF - Global Mixed-mode Technology

Part Number G5603R41U
Description High-Speed Step-Down Controller
Manufacturers Global Mixed-mode Technology 
Logo Global Mixed-mode Technology Logo 


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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 han-
dle wide input/output voltage ratios with ease and pro-
vides 100ns instant-onresponse to load transients
while maintaining a relatively constant switching fre-
quency. The G5603 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 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 in-
cludes over voltage protection.
Ordering Information
ORDER
NUMBER
MARKING
G5603D21U
G5603
G5603R41U
5603
G5603RU1U
5603
Note: D2: TSSOP-14 RU: TQFN3.5x3.5-14 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
TQFN3.5x3.5-14
EN_SKIP 1
TON 2
OUT 3
VCC 4
FB 5
PGOOD 6
AGND 7
G5603
TSSOP-14
14 BST
13 DH
12 LX
11 ILIM
10 VDD
9 DL
8 PGND
OUT 1
VCC 2
FB 3
PGOOD 4
Thermal
Pad
12 DH
11 LX
BST 14
10 ILIM
EN_SKIP
9 VDD
1
Thermal
Pad
8 PGND
7 AGND
G5603 TQFN3X3-16
G5603 TQFN3.5X3.5-14
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
Ver: 0.92
Mar 25, 2011
TEL: 886-3-5788833
http://www.gmt.com.tw
1


Part Details

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Featured Datasheets

Part NumberDescriptionMFRS
G5603R41UThe function is High-Speed Step-Down Controller. Global Mixed-mode TechnologyGlobal Mixed-mode Technology

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