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G2986

Global Mixed-mode Technology
Part Number G2986
Manufacturer Global Mixed-mode Technology
Description LPDDR2/LPDDR3 Termination Regulator
Published Jun 26, 2014
Detailed Description Global Mixed-mode Technology G2986 General Description The G2986 is a 3A sink/source tracking termination regulator. It...
Datasheet PDF File G2986 PDF File

G2986
G2986

Overview
Global Mixed-mode Technology G2986 General Description The G2986 is a 3A sink/source tracking termination regulator.
It is specifically designed for low-cost/ low-external component count systems.
The G2986 maintains a high speed operational amplifier that provides fast load transient response and only requires 20µF (2×10µF) of ceramic output capacitance.
The G2986 supports remote sensing functions and all features required to power the LPDDR2 /LPDDR3 /DDR IIIL VTT bus termination according to the JEDEC specification.
In addition, the G2986 includes integrated sleep-state controls placing VTT in High-Z in S3 (suspend to RAM) and soft-off for VTT and VTTREF in S5 (Shutdown).
The G2986 is available in the thermally efficient TDFN2X2-10.
LPDDR2/LPDDR3 Termination Regulator Features „ „ „ „ „ „ „ „ „ „ „ „ „ Support 1.
2V LPDDR2/LPDDR3 and DDR IIIL (0.
675VTT) Requirements Input Voltage Range: 3V to 5.
5V VLDOIN Voltage Range: 1.
2V to 3.
6V Requires Only 20µF Ceramic Output Capacitance Supports High-Z in S3 and Soft-Off in S5 Integrated Divider Tracks 1/2 VDDQSNS for Both VTT and VTTREF Remote Sensing (VTTSNS) ±20mV Accuracy for VTT and VTTREF 10mA Buffered Reference (VTTREF) Built-In Soft-Start Over Current Protection Thermal Shutdown Protection TDFN2X2-10 Package Applications DDR IIIL Memory Termination LPDDR2/LPDDR3 Memory Termination SSTL−2, SSTL−18 „ HSTL Termination „ „ „ Ordering Information ORDER NUMBER G2986K21U G2986K21D Note: K2:TDFN 2X2-10 1:Bonding Code U & D: Tape & Reel MARKING 2986 2986 TEMP.
RANGE -40°C~85°C -40°C~85°C PACKAGE (Green) TDFN2X2-10 TDFN2X2-10 Pin Configuration Typical Application Circuit G2986 VDDQSNS VLDOIN VTT PGND VTTSNS 1 2 3 4 4 5 Thermal Pad (EP) 10 10 9 8 7 6 VIN S5 GND S3 VTTREF C1 2x10µF 1.
2V LPDDRII/LPDDRIII DDR II VTT PGND VTTSNS VDDQSNS VLDOIN VIN S5 GND S3 VTTREF C2 0.
1µF S3 S5 VIN=3.
3V TDFN2X2-10 Note: Recommend connecting the Thermal Pad to the GND or let it keep floating.
Ver: 0.
2 Aug 28, 2013 TEL: 886-3-5788833 ...


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