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G2986 Datasheet(PDF) 1 Page - Global Mixed-mode Technology Inc |
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G2986 Datasheet(HTML) 1 Page - Global Mixed-mode Technology Inc |
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1 / 1 page  Ver: 0.2 Aug 28, 2013 TEL: 886-3-5788833 http://www.gmt.com.tw 1 G2986 Global Mixed-mode Technology 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 Capaci- tance 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 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 pro- vides fast load transient response and only requires 20µF (2 ×10µF) of ceramic output capacitance. The G2986 supports remote sensing functions and all fea- tures required to power the LPDDR2 /LPDDR3 /DDR IIIL VTT bus termination according to the JEDEC specification. In addition, the G2986 includes inte- grated 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. Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G2986K21U 2986 -40°C~85°C TDFN2X2-10 G2986K21D 2986 -40°C~85°C TDFN2X2-10 Note: K2:TDFN 2X2-10 1:Bonding Code U & D: Tape & Reel Pin Configuration Typical Application Circuit S5 VDDQSNS VLDOIN PGND VTTSNS VTT GND S3 VIN VTTREF DDR II LPDDRII/LPDDRIII VDDQSNS VIN VLDOIN VTT GND PGND S3 S5 VIN=3.3V 2x10µF VTTSNS VTTREF S5 1.2V S3 0.1µF C2 C1 Note: Recommend connecting the Thermal Pad to the GND or let it keep floating. TDFN2X2-10 4 G2986 1 2 3 8 7 6 5 9 10 4 1 2 3 8 7 6 5 9 10 Thermal Pad (EP) S5 VDDQSNS VLDOIN PGND VTTSNS VTT GND S3 VIN VTTREF DDR II LPDDRII/LPDDRIII VDDQSNS VIN VLDOIN VTT GND PGND S3 S5 VIN=3.3V 2x10µF VTTSNS VTTREF S5 1.2V S3 0.1µF C2 C1 Note: Recommend connecting the Thermal Pad to the GND or let it keep floating. TDFN2X2-10 4 G2986 1 2 3 8 7 6 5 9 10 4 1 2 3 8 7 6 5 9 10 Thermal Pad (EP) |
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