NS LM2940CS-9.0/NOPB

正26V1A

Overview

The LM2940-N and LM2940CS-12/NOPB positive voltage regulators feature the ability to source 1 A of output current with a dropout voltage of typically 0.5 V and a maximum of 1 V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground current when the differential between the input voltage and the output voltage exceeds approximately 3 V. The quiescent current with 1 A of output current and an input-output differential of 5 V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN − VOUT ≤ 3 V).

Designed also for vehicular applications, the LM2940-N and LM2940CS-12/NOPB and all regulated circuitry are protected from reverse battery installations or 2-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. The LM2940-N and LM2940CS-12/NOPB cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.

Features

Bulk Package
Positive Output Configuration
Fixed Output Type
1 Number of Regulators
26V Voltage - Input (Max)
9V Voltage - Output (Min/Fixed)
0.8V @ 1A Voltage Dropout (Max)
1A Current - Output
10 mA Current - Quiescent (Iq)
64dB (120Hz) PSRR
Over Current, Over Temperature, Reverse Polarity, Short Circuit Protection Features
0°C ~ 125°C Operating Temperature
Surface Mount Mounting Type
15 mA Current - Supply (Max)