G2986 台湾致新代理商 GMT LDO系列 DDR终结器
LPDDR2/LPDDR3 Termination Regulator
| Part Number | VDDQ (V)min. | VDDQ (V) max. | Isource(A) | Isink(V) | LVREF(mA) | VCNTL (V) | EN | Note | Package |
| G2986 | 1.1 | 3.6 | 4 | 4 | 10 | 3~5.5 | S3/S5 | DDR1/2/3/4/3L, LPDDR2/3 | TDFN2X2-10 |
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.
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
Ordering Information
| ORDER NUMBER (Pb free/Green) | MARKING | TEMP. RANGE | PACKAGE |
| 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
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