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LND-7800/78L00
LOW DROPOUT REGULATOR
LND-7800/78L00
Low Dropout Regulator
What is the LND-7800?
The LND-7800/78L00 is Linear Dimensions鈥?version of the popular LND-7800
series low dropout regulator family. These devices offer voltage regulation
at extremely low cost. The devices are particularly useful in applications
such as wall adaptors, toys, or wall plugged devices which aren鈥檛 power
critical but which require power regulation. These devices are available in
a variety of voltage varieties including 5, 6, 8, 9, 12, 15, 18 and 24V.
How does it work?
To use the device simply connect the power and GND pins, the centre pin
will represent the regulated output voltage.
How Do I get samples?
The LND-7800/78L00 are available in standard TO-92 plastic packages in
both sample and volume. When ordering, replace the 00 with the appropriate
voltage level, eg. LND-7805 would result in a 5V, TO-92, plastic package
part.
Block Diagram:
Input
Features
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Up to 1.5A Output Current
Low Noise
Ripple Rejection
Thermal Shutdown
Current Limiting
Various Voltages Including:
5, 6, 8, 9, 12, 15, 18 and 24V.
Applications
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Wall Power Adaptors
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Electronic Toys
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Electronic Power Supply
Output Regulators
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Industrial Controllers
Output
series pass
element
1
3
current
generator
safe area
protector
start
circuit
reference
voltage
error
amplifier
thermal
protector
GND
Figure 1: Block Diagram
2
Linear Dimensions, Inc. 445 East Ohio Street, Chicago, IL 60611 p 312.3211810 f 312.321.1830
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