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LND-7900
NEGATIVE VOLTAGE LOW DROPOUT REGULATORS
LND-7900
Negative Voltage
Low Dropout Regulators
What is the LND-7900?
The LND-7900 is Linear Dimensions鈥?version of the popular LND-7900 series negative voltage
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: -6, -8, -9, -12, -15, -18, -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-7900 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-7906 would result in a
6V, TO-92, plastic package part.
Features
路 Up to 1.5A Output Current
路 No external conpensation
路 Ripple RejecttdoJunction Temperature
Limit
路 Voltages Including: -6, -8, -9,
-12, -15, -18, and -24V.
Applications
路 Wall Power Adaptors
路 Electronic Toys
路 Electronic Power Supply
Output Regulators
路 Industrial Controllers
Block Diagram:
Input
series pass
element
1
3
Output
current
generator
safe area
protector
start
circuit
reference
voltage
error
amplifier
thermal
protector
GND
Figure 1: Block Diagram
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Linear Dimensions, Inc. 445 East Ohio Street, Chicago, IL 60611 p 312.3211810 f 312.321.1830
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