ZLDO1117
1A Low Dropout Positive Regulator
1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V and Adjustable outputs
Description
ZLDO1117 is a low dropout positive adjustable or fixed-
mode regulator with 1A output current capability.
The ZLDO1117 has a 2% tolerance across the industrial
temperature range and is guaranteed to have lower than
1.2V dropout at full load current making it ideal to provide
well-regulated outputs of 1.2V to 5.0V with input supply
voltages up to 18V.
The ZLDO1117 is ideally suited to provide well-regulated
supplies for low voltage IC applications such as high-
speed bus termination and low current 3.3V logic supply
across the whole industrial temperature range.
Pin Assignments
SOT223
TO252
Features
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1.2V Maximum Dropout at Full Load Current
2% tolerance over temperature, line and load
variations
Fast Transient Response
Output Current Limiting
Built-in Thermal Shutdown
Good Noise Rejection
Suitable for use with MLCC capacitors
-40 to 125°C Junction temperature range
Available in “Green” Molding Compound (No Br, Sb)
with lead free Finish/RoHS Compliant (Note 1)
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Typical Application circuit
1A I/O – 1.8V core regulator
ZLDO1117-18
3.3V
4.7µF
MLCC
1.8V
4.7µF
MLCC
Issue 1
1 of 12
June 2009
©
Diodes Incorporated
DIODES [ DIODES INCORPORATED ]
