78L05 Datasheet PDF – 5V, Positive Regulator – TI

Part Number : 78L05

Function : 5V, 3-Terminal Positive Regulator

Package : TO-92 Type

Manufacturers : National Semiconductor (Texas Instruments)

Image and Pinouts :
78L05 datasheet

Description :

The 78L05 series of three terminal positive regulators is available with several fixed output voltages making them useful in a wide range of applications. When used as a zener diode/resistor combination replacement, the LM78LXX usually results in an effective output impedance improvement of two orders of magnitude, and lower quiescent current. These regulators can provide local on card regulation, eliminating the distribution problems associated with single point regulation. The voltages available allow the LM78LXX to be used in logic systems, instrumentation, HiFi, and other solid state electronic equipment.

Features :

1. 78L05 in micro SMD package

2. Output voltage tolerances of ±5% over the temperature range

3. Output current of 100mA

4. Internal thermal overload protection

5. Output transistor safe area protection

6. Internal short circuit current limit

Acquired by Texas Instruments on September 23rd, 2011.

78L05 Datasheet PDF Download

78L05 pdf

Other data sheets within the file : 78L05ACM, 78L05ACMX, 78L09, 78L09ACZ

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UC3843 Datasheet PDF – SMPS Controller – Fairchild

Part Number : UC3843, UC3843N, UC3843D1, UC3843D

Description : SMPS Controller

Package : 8-DIP, 8-SOP, 14-SOP Type

Manufactures : Fairchild Semiconductor


UC3843 pinout datasheet
Description :

This is SMPS Controller.

The UC3842 / UC3843 / UC3844 / UC3845 are fixed frequencycurrent-mode PWM controller. They are specially designed for Off-Line and DC to DC converter applications with minimum external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totempole output for driving a Power MOSFET.


1. Low Start up Current

2. Maximum Duty Clamp

3. UVLO With Hysteresis

4. Operating Frequency up to 500KHz



UC3843 Datasheet

UC3843 pdf


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