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The NCP/NCV51198 is a simple, cost-effective, high-speed linear regulator designed to generate the VTT termination voltage rail for DDR-I, DDR-II and DDR-III memory. The regulator is capable of actively sourcing or sinking up to ±1.5 A for DDR-I, or up to ±0.5 A for DDR-II /-III while regulating the output voltage to within ±30 mV. The output termination voltage is tightly regulated to track VTT = (VDDQ / 2) over the entire current range. The NCP/NCV51198 incorporates a high-speed differential amplifier to provide ultra-fast response to line and load transients. Other features include extremely low initial offset voltage, excellent
load regulation, source/sink soft-start and on-chip thermal shut-down protection. The NCP/NCV51198 features the power-saving Suspend To Ram (STR) function which will tri-state the regulator output and lower the quiescent current drawn when the /SS pin is pulled low. The NCP/NCV51198 is available in a SOIC-8 Exposed Pad package.

Features:

Generate DDR Memory Termination Voltage (VTT)

For DDR-I, DDR-II, DDR-III Source/Sink Currents

Supports DDR-I to ±1.5 A, DDR-II to ±0.5 A (peak)

Integrated Power MOSFETs with Thermal Protection

Stable with 10 F Ceramic VTT Capacitor

High Accuracy Output Voltage at Full-Load

Minimal External Component Count

Shutdown for Standby or Suspend to RAM (STR) mode

Built-in Soft Start

NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable

These are Pb-Free Devices

Applications:

Desktop PCs, Notebooks, and Workstations

Graphics Card DDR Memory Termination

Set Top Boxes, Digital TVs, Printers

Embedded Systems

Active Bus Termination

Current, Output	1.5 A
Dimensions	4.9 x 3.9 x 1.5 mm
Height	0.059" (1.5mm)
Length	0.192" (4.9mm)
Mounting Type	Surface Mount
Number of Outputs	1
Number of Pins	8
Output Type	Fixed
Package Type	SOIC
Polarity	Positive
Regulator Function	Linear
Temperature, Operating, Maximum	+125 °C
Temperature, Operating, Minimum	-40 °C
Temperature, Operating, Range	-40 to +125 °C
Voltage, Input Range	2.2 to 5.5 V
Voltage, Input, High Level	5.5 V
Voltage, Output	1.112 to 1.382 V
Width	0.154" (3.9mm)
关键词

Current, Output 1.5 A  ON Semiconductor Current, Output 1.5 A  Linear Voltage Regulators Current, Output 1.5 A  ON Semiconductor Linear Voltage Regulators Current, Output 1.5 A   Dimensions 4.9 x 3.9 x 1.5 mm  ON Semiconductor Dimensions 4.9 x 3.9 x 1.5 mm  Linear Voltage Regulators Dimensions 4.9 x 3.9 x 1.5 mm  ON Semiconductor Linear Voltage Regulators Dimensions 4.9 x 3.9 x 1.5 mm   Height 0.059" (1.5mm)  ON Semiconductor Height 0.059" (1.5mm)  Linear Voltage Regulators Height 0.059" (1.5mm)  ON Semiconductor Linear Voltage Regulators Height 0.059" (1.5mm)   Length 0.192" (4.9mm)  ON Semiconductor Length 0.192" (4.9mm)  Linear Voltage Regulators Length 0.192" (4.9mm)  ON Semiconductor Linear Voltage Regulators Length 0.192" (4.9mm)   Mounting Type Surface Mount  ON Semiconductor Mounting Type Surface Mount  Linear Voltage Regulators Mounting Type Surface Mount  ON Semiconductor Linear Voltage Regulators Mounting Type Surface Mount   Number of Outputs 1  ON Semiconductor Number of Outputs 1  Linear Voltage Regulators Number of Outputs 1  ON Semiconductor Linear Voltage Regulators Number of Outputs 1   Number of Pins 8  ON Semiconductor Number of Pins 8  Linear Voltage Regulators Number of Pins 8  ON Semiconductor Linear Voltage Regulators Number of Pins 8   Output Type Fixed  ON Semiconductor Output Type Fixed  Linear Voltage Regulators Output Type Fixed  ON Semiconductor Linear Voltage Regulators Output Type Fixed   Package Type SOIC  ON Semiconductor Package Type SOIC  Linear Voltage Regulators Package Type SOIC  ON Semiconductor Linear Voltage Regulators Package Type SOIC   Polarity Positive  ON Semiconductor Polarity Positive  Linear Voltage Regulators Polarity Positive  ON Semiconductor Linear Voltage Regulators Polarity Positive   Regulator Function Linear  ON Semiconductor Regulator Function Linear  Linear Voltage Regulators Regulator Function Linear  ON Semiconductor Linear Voltage Regulators Regulator Function Linear   Temperature, Operating, Maximum +125 °C  ON Semiconductor Temperature, Operating, Maximum +125 °C  Linear Voltage Regulators Temperature, Operating, Maximum +125 °C  ON Semiconductor Linear Voltage Regulators Temperature, Operating, Maximum +125 °C   Temperature, Operating, Minimum -40 °C  ON Semiconductor Temperature, Operating, Minimum -40 °C  Linear Voltage Regulators Temperature, Operating, Minimum -40 °C  ON Semiconductor Linear Voltage Regulators Temperature, Operating, Minimum -40 °C   Temperature, Operating, Range -40 to +125 °C  ON Semiconductor Temperature, Operating, Range -40 to +125 °C  Linear Voltage Regulators Temperature, Operating, Range -40 to +125 °C  ON Semiconductor Linear Voltage Regulators Temperature, Operating, Range -40 to +125 °C   Voltage, Input Range 2.2 to 5.5 V  ON Semiconductor Voltage, Input Range 2.2 to 5.5 V  Linear Voltage Regulators Voltage, Input Range 2.2 to 5.5 V  ON Semiconductor Linear Voltage Regulators Voltage, Input Range 2.2 to 5.5 V   Voltage, Input, High Level 5.5 V  ON Semiconductor Voltage, Input, High Level 5.5 V  Linear Voltage Regulators Voltage, Input, High Level 5.5 V  ON Semiconductor Linear Voltage Regulators Voltage, Input, High Level 5.5 V   Voltage, Output 1.112 to 1.382 V  ON Semiconductor Voltage, Output 1.112 to 1.382 V  Linear Voltage Regulators Voltage, Output 1.112 to 1.382 V  ON Semiconductor Linear Voltage Regulators Voltage, Output 1.112 to 1.382 V   Width 0.154" (3.9mm)  ON Semiconductor Width 0.154" (3.9mm)  Linear Voltage Regulators Width 0.154" (3.9mm)  ON Semiconductor Linear Voltage Regulators Width 0.154" (3.9mm)