REG1118-2.85集成电路（IC）的线性+开关稳压器规格书PDF中文资料

REG1118-2.85属于集成电路（IC）的线性+开关稳压器。由德州仪器制造生产的REG1118-2.85稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。

FEATURES

SOURCES 800mA, SINKS 400mA

2.85V OUTPUT FOR SCSI ACTIVE

NEGATION TERMINATION

1.3V max DROPOUT VOLTAGE AT

IO = 800mA

INTERNAL CURRENT LIMIT

THERMAL OVERLOAD PROTECTION

SOT-223 SURFACE MOUNT PACKAGE

APPLICATIONS

SCSI-2 AND SCSI-3 DEVICES

FAST-20 SCSI

ACTIVE NEGATION SCSI TERMINATORS

SUPPLY SPLITTER GROUND GENERATION

DESCRIPTION

The REG1118-2.85 is a three-terminal voltage regulators

capable of sourcing up to 800mA and sinking up

to 400mA. The sinking capability is important in SCSI

applications where active negation line drivers are

used. The REG1118-2.85 is useful for making a

27-line Boulay terminator capable of interfacing with

active negation drivers required in FAST-20 SCSI

applications. The regulator has active current limits

for both sink and source currents as well as internal

thermal limiting.

Laser trimming assures excellent output voltage accuracy.

An NPN output stage allows output stage drive

current to contribute to the source load current for

maximum efficiency.

REG1118 is packaged in a SOT-223 surface-mount

package, suitable for reflow soldering techniques.