ZLDO1117_10 Datasheet, PDF (1/12 Pages) Diodes Incorporated – 1A LOW DROPOUT POSITIVE REGULATOR 1.2V, 1.5V

A Product Line of
Diodes Incorporated
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
SOT223-3L
TO252-3L
Features
• 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)
Typical Application Circuit
1A I/O – 1.8V core regulator
3.3V
ZLDO1117-18
4.7µF
MLCC
1.8V
4.7µF
MLCC
ZLDO1117
Document number: Ds32018 Rev. 4 - 2
1 of 12
www.diodes.com
July 2010
© Diodes Incorporated