UA78

(ACTIVE) 1.5-A, 40-V, Fixed Positive Linear Regulators

Diagram

Functional Diagram

Description

This series of fixed-voltage integrated-circuit voltage regulators is designed for a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation. Each of these regulators can deliver up to 1.5 A of output current. The internal current-limiting and thermal-shutdown features of these regulators essentially make them immune to overload. In addition to use as fixed-voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents, and also can be used as the power-pass element in precision regulators.

Features

  • 3-Terminal Regulators
  • Available in fixed 5-V/8-V/10-V/12-V/
    15-V/24-V options
  • Output Current up to 1.5 A
  • Internal Thermal-Overload Protection
  • High Power-Dissipation Capability
  • Internal Short-Circuit Current Limiting
  • Output Transistor Safe-Area Compensation
  • Output Capacitor Not Needed for Stability

Parametrics

Output Options Fixed Output    
Iout (Max) (A) 1.5    
Vin (Max) (V) 38    
Vin (Min) (V) 7    
Vout (Max) (V) 24    
Vout (Min) (V) 5    
Fixed output options (V) 5^8^10^12^15^24    
Package Group DDPAK/TO-263|3^TO-220|3    
Features N/A    
Regulated Outputs (#) 1    
Operating Temperature Range (C) 0 to 125    
Thermal Resistance θJA (°C/W) 22    
Noise (uVrms) 52    
Approx. price (US$) 0.18 | 1ku    
Rating Catalog    
Output Capacitor Type Cap Free^Non-Ceramic    
Accuracy (%) 3.75    
Vdo (Typ) (mV) 2000    
Iq (Typ) (mA) 4.3    
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)    

Companion Products

Technical Documents

Datasheet (1)

Application notes (11)

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