Part Number: LP2998

Function: DDR Termination Regulator

Package: SO PowerPAD 8 Pin, SOIC 8 Pin Type

Manufacturer: Texas Instruments

Image and Pinouts:

 

Description

The LP2998 linear regulator is designed to meet JEDEC SSTL-2 and JEDEC SSTL-18 specifications for termination of DDR-SDRAM and DDR2 memory. The device also supports DDR3 and DDR3L VTT bus termination with V DDQ min of 1.35 V. The device contains a high-speed operational amplifier to provide excellent response to load transients. The output stage prevents shoot through while delivering 1.5 A continuous current and transient peaks up to 3 A in the application as required for DDR-SDRAM termination. The LP2998 also incorporates a VSENSE pin to provide superior load regulation and a V REF output as a reference for the chipset and DIMMs.

Features

1. Source and Sink Current

2. Low Output Voltage Offset

3. No External Resistors Required

4. Suspend to Ram (STR) Functionality

LP2998 Datasheet PDF Download

Other data sheets are available within the file:

LP2998-Q1, LP2998MA, LP2998MA/NOPB, LP2998MAE/NOPB

Part Number: 29502BU

Function: High-Current Low-Dropout Regulator

Package: 5-Pin TO-263 Type

Manufacturer: Micrel Semicondcutor

Image and Pinouts:

 

Description

The 29502BU is High-Current Low-Dropout Regulator.

The MIC29150 / MIC29300 / MIC29500 / MIC29750 are fully protected against overcurrent faults, reversed input polarity, reversed lead insertion, overtemperature operation, and positive and negative transient voltage spikes.

Five pin fixed voltage versions feature logic level ON/OFF control and an error flag which signals whenever the output falls out of regulation.

Flagged states include low input voltage (dropout), output current limit, overtemperature shutdown, and extremely high voltage spikes on the input.

 

Features

• High current capability:

(1) MIC29150/29151/29152/29153 : 1.5A
(2) MIC29300/29301/29302/29303 : 3A
(3) MIC29500/29501/29502/29503 : 5A
(4) MIC29750/29751/29752 :7.5A

• Low-dropout voltage

• Low ground current

• Accurate 1% guaranteed tolerance

• Extremely fast transient response

• Reverse-battery and “Load Dump” protection

 

Applications:

• Battery-powered equipment

• High-efficiency “Green” computer systems

• Automotive electronics

• High-efficiency linear lower supplies

Other data sheets are available within the file:

29502BT, 29502WT, 29502WU, 29503BT

 

29502BU Datasheet PDF Download