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Voltage Regulator Specs for Engineers

The 78L05 is a 3-terminal positive voltage regulator with the following key features: - It provides 5V regulated output voltage from an input voltage range of 7-20V. - It has internal protections against short circuits and thermal overloads. - It can supply up to 100mA of output current.

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120 views2 pages

Voltage Regulator Specs for Engineers

The 78L05 is a 3-terminal positive voltage regulator with the following key features: - It provides 5V regulated output voltage from an input voltage range of 7-20V. - It has internal protections against short circuits and thermal overloads. - It can supply up to 100mA of output current.

Uploaded by

DOMINGOSERPA4148
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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78L05

3-Terminal positive voltage regulator

Features
• Internal short-circuit current limiting
• Internal thermal overload protection
• Maximum output current of 100 mA (Tj = 25℃)

1. Output 2. Common 3. Input


TO-92 Plastic Package
Absolute Maximum Ratings (Ta = 25℃)
Parameter Symbol Value Unit
Input Voltage VIN 35 V
Power Dissipation Ptot 625 mW
Operating Temperature Topr - 30 to + 75 ℃
Storage Temperature Range Tstg - 55 to + 150 ℃

Electrical Characteristics (Unless otherwise specified, VIN = 10 V, IOUT = 40 mA, CIN = 0.33 µF, COUT = 0.1 µF, Tj = 25℃)
Parameter Symbol Min. Typ. Max. Unit
Output Voltage VOUT 4.8 5 5.2 V
Input Regulation
7 V ≤ VIN ≤ 20 V Reg. line - 55 150 mV
8 V ≤ VIN ≤ 20 V - 45 100
Load Regulation
1 mA ≤ IOUT ≤ 100 mA Reg. load - 11 60 mV
1 mA ≤ IOUT ≤ 40 mA - 5 30
Output Voltage
7 V ≤ VIN ≤ 20 V VOUT 4.75 - 5.25 V
1 mA ≤ IOUT ≤ 40 mA
Output Voltage
VIN = 10 V VOUT 4.75 - 5.25 V
1 mA ≤ IOUT ≤ 70 mA
Quiescent Current IB - 3.1 6 mA
Quiescent Current Change
8 V ≤ VIN ≤ 20 V With line ∆IB - - 1.5 mA
1 mA ≤ IOUT ≤ 40 mA With load - - 0.1
Output Noise Voltage
VNO - 40 - µV
at Ta = 25℃, 10 Hz ≤ f ≤ 100 KHz
Ripple Rejection
RR 41 49 - dB
at f = 120 Hz, 8 V ≤ VIN ≤ 18 V, Tj = 25℃
Dropout Voltage
VIN-VOUT  - 1.7 - V
at Tj = 25℃
Average Temperature Coefficient of Output Voltage
TCVO - -0.6 - mV/℃
at IOUT = 5 mA

SEMTECH ELECTRONICS LTD.


®
Dated: 23/02/2016 CL Rev: 03
78L05

SEMTECH ELECTRONICS LTD.


®
Dated: 23/02/2016 CL Rev: 03

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