Harman Kardon AVR 171/230, Руководство по обслуживанию

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Imagis Co., Ltd.
LM7800
CONFIDENTIAL 2012-04-16
- 3/21 -
1. Overview
1.1 Description
The voltage regulators are designed as fixed-voltage regulator for a wide variety of applications
Including local,on-card regulation. Although designed primarily as a fixed voltage regulator,
these devices can be used with external components to obtain adjustable voltages and currents
1.2 Features
• Output current in excess of 1.0A
• No external components required
• Output voltages (5V, 6V, 8V, 9V, 10V, 12V, 15V, 18V, 24V)
• Internal Thermal shutdown and SOA protection
• Output voltage offered in 4% Tolerance
• Pb-Free Packages are available
• High ESD Level (HBM>8,000V, MM>800V)
1.3 Standard Application
Input 1 3 Output
C
I
2 C
O
0.33
㎌
0.1
㎌
The input voltage must remain typically 2.0V above the output voltage even during the
low point on the ripple voltage.
• C
I
is required if regulator is located an appreciable distance from power filter.
• Co improves transient response. Value of ≤ 0.1 ㎌ could cause instability.
1.4 Package Type
1. INPUT
2. GND
1 2 3 123 1 2 3 3. OUTPUT
TO-220F TO-220 D-PAK(TO-252)
LM7805
Harman Kardon AVR 171 Service Manual
Page 75 of 174