National Semiconductor LM125/LM325/LM325A/LM126/LM326 Voltage Regulator Datasheet


National Semiconductor LM125/LM325/LM325A/LM126/LM326 Voltage Regulator Datasheet - cover page
Brand
National Semiconductor
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
8
File format
PDF
File size
468 KB
Published
05 April, 2012
Updated
05 April, 2012
Models
LM125, LM126
MD5 checksum
282C873EED2BD15310B3D7C61670741A

About this manual

The LM125, LM325, LM325A, LM126 and LM326 are dual‑polarity tracking voltage regulators that deliver balanced positive and negative outputs (±15 V and ±12 V) with up to 100 mA load current. They feature line and load regulation of 0.06 %, internal thermal overload protection, and a standby current drain of 3 mA. Input voltages up to +30 V are supported and the output voltage is balanced within 1 %.

Typical performance graphs, absolute maximum ratings, and recommended application circuits are included. The document also lists package options (dual‑in‑line and metal‑can) and provides thermal resistance data for junction‑to‑case and junction‑to‑ambient configurations.

What's inside

  • General Description
  • Features
  • Schematic and Connection Diagrams
  • Absolute Maximum Ratings
  • Operating Conditions
  • Electrical Characteristics
  • Typical Performance Characteristics
  • Typical Applications

Specifications

Maximum output current100 mA
Line regulation0.06 %
Standby current drain3 mA
Input voltage rangeup to +30 V
Output voltage balancewithin 1 %
Thermal resistance (junction‑to‑case)20 °C/W
Operating temperature range-55 °C to +126 °C

Frequently asked questions

What is the maximum output current of the LM125 series regulators?

The regulators can supply up to 100 mA of output current.

What line regulation does the device provide?

The line regulation is specified as 0.06 %.

What is the standby current drain of these regulators?

The standby current drain is 3 mA.

What input voltage range can be used with the LM125/LM325 devices?

Input voltages up to +30 V can be applied.

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