UA78 1.5-A, 40-V fixed positive linear regulator | TI.com

UA78 (ACTIVE)

1.5-A, 40-V fixed positive linear regulator

 

Recommended alternative parts

  • TPSM84205  -  1.5A, 28V Input, 5V Output TO-220 Power Module
  • TLV760  -  TLV760 is a wide input (30V) Low current (100mA) linear regulator

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

View more

Parametrics Compare all products in Linear regulators (LDO)

 
Output options
Iout (Max) (A)
Vin (Max) (V)
Vin (Min) (V)
Vout (Max) (V)
Vout (Min) (V)
Fixed output options (V)
Package Group
Features
Regulated outputs (#)
Operating temperature range (C)
Thermal Resistance θJA (°C/W)
Noise (uVrms)
Approx. price (US$)
Rating
Output capacitor type
PSRR @ 100 KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package size: mm2:W x L (PKG)
UA78 UA78L UA78M
Fixed Output     Fixed Output     Fixed Output    
1.5     0.1     0.5    
38     30     30    
7     4.75     5.3    
24     15     12    
5     2.6     3.3    
5
8
10
12
15
24    
2.6
5
6.2
8
9
10
12
15    
3.3
5
6
8
9
10
12    
DDPAK/TO-263 | 3
TO-220 | 3    
SOIC | 8
SOT-89 | 3
TO-92 | 3    
SOT-223 | 4
TO-220 | 3
TO-252 | 3    
   
   
   
1     1     1    
0 to 125     -40 to 125
0 to 125    
-40 to 125
0 to 125    
22     55     23    
52     42     40    
0.18 | 1ku     0.09 | 1ku     0.18 | 1ku    
Catalog     Catalog     Catalog    
Cap Free
Non-Ceramic    
Cap Free
Non-Ceramic    
Cap Free
Non-Ceramic    
40     40     40    
3.75     3.75     3    
2000     1700     2000    
4.3     3.8     4.5    
3DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 3)
See datasheet (TO-220)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
3SOT-89: 18 mm2: 4.095 x 4.5 (SOT-89 | 3)
3TO-92: 19 mm2: 3.68 x 5.2 (TO-92 | 3)    
4SOT-223: 46 mm2: 7 x 6.5 (SOT-223 | 4)
See datasheet (TO-220)
3TO-252: 67 mm2: 10.11 x 6.6 (TO-252 | 3)