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Product details

Parameters

Output options Adjustable Output, Negative Output Iout (Max) (A) 1.5 Vin (Max) (V) -3 Vin (Min) (V) -40 Vout (Max) (V) -1.2 Vout (Min) (V) -37 Noise (uVrms) 1110 Iq (Typ) (mA) 0.065 Thermal resistance θJA (°C/W) 23 Approx. price (US$) 0.32 | 1ku Load capacitance (Min) (µF) 1 Rating Catalog Regulated outputs (#) 1 Features Accuracy (%) 4 PSRR @ 100 KHz (dB) 19 Dropout voltage (Vdo) (Typ) (mV) 2000 Operating temperature range (C) -25 to 150 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

TO-220 (KCS) 3 88 mm² 10.15 x 15.4 TO-220 (KCS) 3 88 mm² 8.6 x 10.3 open-in-new Find other Linear regulators (LDO)

Features

  • Output Voltage Range Adjustable
    From –1.2 V to –37 V
  • Output Current Capability of 1.5 A Max
  • Input Regulation Typically 0.01% Per Input-
    Voltage Change
  • Output Regulation Typically 0.3%
  • Peak Output Current Constant Over Temperature
    Range of Regulator
  • Ripple Rejection Typically 77 dB
  • Direct Replacement for Industry-Standard LM237
    and LM337
open-in-new Find other Linear regulators (LDO)

Description

The LM237 and LM337 are adjustable 3-terminal negative-voltage regulators capable of supplying in excess of –1.5 A over an output voltage range of –1.2 V to –37 V. They require only two external resistors to set the output voltage and one output capacitor for frequency compensation.

open-in-new Find other Linear regulators (LDO)
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Technical documentation

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Type Title Date
* Datasheet LMx37 3-Terminal Adjustable Regulators datasheet (Rev. L) Jan. 12, 2015
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Application notes LDO Noise Demystified (Rev. A) Aug. 09, 2017
Application notes LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
Application notes AB-12 Wide Adjustable Range PNP Voltage Regulator (Rev. B) May 06, 2013
Application notes AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) May 06, 2013
Application notes AN-42 IC Provides On-Card Regulation for Logic Circuits (Rev. B) May 06, 2013
Application notes AN-178 Applications for an Adjustable IC Power Regulator (Rev. B) May 05, 2013
Application notes AN-181 3-Terminal Regulator is Adjustable (Rev. B) May 05, 2013
Application notes AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B) May 05, 2013
Application notes Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) May 05, 2013
Application notes AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) Apr. 23, 2013
Application notes High-Efficiency Reg has Low Drop-Out Voltage (Rev. B) Apr. 23, 2013
Application notes A New Production Technique for Trimming Voltage Regulators Oct. 03, 2002
Application notes Adjustable 3-Terminal Regulator for Low-Cost Battery Charging Systems Oct. 03, 2002
Application notes High Stability Regulators Oct. 03, 2002

Design & development

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Design tools & simulation

SIMULATION MODELS Download
SNVMAP4.ZIP (1 KB) - PSpice Model
SIMULATION MODELS Download
SNVMAP5.ZIP (49 KB) - PSpice Model

CAD/CAE symbols

Package Pins Download
TO-220 (KCS) 3 View options

Ordering & quality

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