CS8321 Datasheet, PDF (1/6 Pages) Cherry Semiconductor Corporation – Micropower 5V, 150mA Low Dropout Linear Regulator

CS8321
Micropower 5.0 V,
150 mA Low Dropout
Linear Regulator
The CS8321 is a precision 5.0 V micropower voltage regulator with
very low quiescent current (140 mA typ at 1.0 mA load). The 5.0 V
output is accurate within ±2% and supplies 150 mA of load current
with a typical dropout voltage of only 300 mV.
This combination of low quiescent current and outstanding
regulator performance makes the CS8321 ideal for any battery
operated equipment.
The regulator is protected against reverse battery and short circuit
conditions. The device can withstand 45 V load dump transients
making it suitable for use in automotive environments.
Features
• 5.0 V ± 2% Output
• Low 140 mA (typ) Quiescent Current
• 150 mA Output Current Capability
• Fault Protection
♦ −15 V Reverse Voltage Output Current Limit
• Low Reverse Current (Output to Input)
• Pb−Free Packages are Available*
V_IN
Current Source
(Circuit Bias)
Q_P
R
Q_N
V_OUT
Current Limit
Sense
Bandgap
Reference
+−
Error
Amplifier _R1
R2
GND
*Lead Shorted to V_OUT in 3−Pin Applications
Figure 1. Block Diagram
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2005
1
October, 2005 − Rev. 7
http://onsemi.com
12 ₃
123
TO−220−3
T SUFFIX
CASE 221A
Pin 1. V_IN
2. GND
3. V_OUT
D²PAK−3
DP SUFFIX
CASE 418AB
MARKING DIAGRAMS
TO−220−3
D²PAK−3
CS
8321
AWLYWWG
CS
8321
AWLYWWG
1
1
A
= Assembly Location
WL = Wafer Lot
Y
= Year
WW = Work Week
G
= Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
Publication Order Number:
CS8321/D