LM7800 1.5-A, Wide VIN Fixed Voltage Regulators | TI.com

LM7800 (ACTIVE)

1.5-A, Wide VIN Fixed Voltage Regulators

 

Description

The LM340 and LM7805 Family monolithic 3-terminal positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over 1.5-A output current. They are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents.

Considerable effort was expended to make the entire series of regulators easy to use and minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response. Input bypassing is needed only if the regulator is located far from the filter capacitor of the power supply.

LM7805 is also available in a higher accuracy and better performance version (LM340A). Refer to LM340A specifications in the LM340A Electrical Characterisitcs table.

Features

  • Output Current up to 1.5 A
  • Available in Fixed 5-V, 12-V, and 15-V Options
  • Output Voltage Tolerances of ±2% at TJ = 25°C (LM340A)
  • Line Regulation of 0.01% / V of at 1-A Load (LM340A)
  • Load Regulation of 0.3% / A (LM340A)
  • Internal Thermal Overload, Short-Circuit and SOA Protection
  • Available in Space-Saving SOT-223 Package
  • Output Capacitance Not Required for Stability

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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)
LM7800 LM340 LM78L LM78M
Fixed Output     Fixed Output     Fixed Output     Fixed Output    
1.5     1.5     0.1     0.5    
30     35     30     35    
7.5     7.5     6.7     7.2    
15     15     15     15    
5     5     5     5    
5
12
15    
5
12
15    
5
6.2
9
12
15    
5    
DDPAK/TO-263 | 3
SOT-223 | 4
TO-220 | 3    
DDPAK/TO-263 | 3
SOT-223 | 4
TO-220 | 3    
DSBGA | 8
SOIC | 8
TO-92 | 3    
TO-220 | 3
TO-252 | 3    
   
   
   
   
1     1     1     1    
-40 to 125
0 to 125    
0 to 125     -40 to 125
-40 to 85
0 to 125    
-40 to 125    
24     24     108     38    
40     40     40     40    
0.46 | 1ku     0.46 | 1ku     0.20 | 1ku     0.46 | 1ku    
Catalog     Catalog     Catalog     Catalog    
Ceramic
Non-Ceramic    
Cap Free
Ceramic    
Non-Ceramic     Non-Ceramic    
48     50     40     40    
3     2.5     2     3    
2000     2000     1600     1800    
6     8     2     4    
3DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 3)
4SOT-223: 46 mm2: 7 x 6.5 (SOT-223 | 4)
See datasheet (TO-220)    
3DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 3)
4SOT-223: 46 mm2: 7 x 6.5 (SOT-223 | 4)
See datasheet (TO-220)    
See datasheet (DSBGA)
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
3TO-92: 19 mm2: 3.68 x 5.2 (TO-92 | 3)    
See datasheet (TO-220)
3TO-252: 40 mm2: 6.1 x 6.58 (TO-252 | 3)