LM337

(ACTIVE) 3 Pin 1.5A Adjustable Negative Voltage Regulator

Diagram

Functional Diagram

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.

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

Parametrics

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    
Package Group DDPAK/TO-263|3^TO-220|3^TO-252|3    
Features N/A    
Regulated Outputs (#) 1    
Operating Temperature Range (C) 0 to 125    
Thermal Resistance θJA (°C/W) 23    
Noise (uVrms) 1110    
Approx. Price (US$) 0.26 | 1ku    
Rating Catalog    
Output Capacitor Type Non-Ceramic    
PSRR @ 100KHz (dB) 19    
Accuracy (%) 2.4    
Vdo (Typ) (mV) 2000    
Iq (Typ) (mA) 1.5    
Package Size: mm2:W x L (PKG) 3DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263|3)^See datasheet (TO-220)^3TO-252: 67 mm2: 10.11 x 6.6 (TO-252|3)    

Companion Products

Technical Documents

Datasheet (1)

Application notes (22)

Selection guides (1)

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