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ZLDO1117 Datasheet

1A LOW DROPOUT POSITIVE REGULATOR

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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
TO252
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
Qualified to AEC-Q100 Grade 2 (see ‘Ordering Information’)
PPAP capable (Note 4)
-40 to +125°C Junction Temperature Range
Available in TO252 and SOT223 with “Green” Molding Compound
(No Br, Sb)
ƒ Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
ƒ Halogen and Antimony Free. “Green” Device (Note 3)
(Top View)
3
2
1
Tab is Vout
Vin
Vout
Adj (GND)
Notes:
1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and <1000ppm antimony compounds.
4. Automotive products are AEC-Q100 qualified and are PPAP capable. Automotive, AEC-Q100 and standard products are electrically and thermally
the same, except where specified.
Typical Applications Circuit
1A I/O – 1.8V Core Regulator
3.3V
4.7µF
MLCC
ZLDO1117-18
1.8V
4.7µF
MLCC
ZLDO1117
Document number: DS32018 Rev. 6 - 2
1 of 14
www.diodes.com
July 2012
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

ZLDO1117 Datasheet

1A LOW DROPOUT POSITIVE REGULATOR

No Preview Available !

A Product Line of
Diodes Incorporated
ZLDO1117
Pin Descriptions
Pin
Name
I/O
Pin
Number
Function
Adj (GND)
I
1
A resistor divider from this pin to the VOUT pin and ground sets the output voltage (Ground only for
Fixed-Mode).
VOUT
O
The output of the regulator. A minimum of 4.7µF capacitor (0.05Ω ≤ ESR 0.5) must be connected
2 from this pin to ground to insure stability. For improved ac load response a larger output capacitor is
recommended.
The input pin of regulator. Typically a large storage capacitor (0.05Ω ≤ ESR 0.5) is connected from
VIN
I
3
this pin to ground to ensure that the input voltage does not sag below the minimum dropout voltage
during the load transient response. This pin must always be 1.3V higher than VOUT in order for the
device to regulate properly.
Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Symbol
VIN
TJ
TST
Parameter
Input Supply Voltage (Relative to Ground)
Junction Temperature
Power Dissipation
Storage Temperature
Unless otherwise stated voltages specified are relative to the ANODE pin.
Rating
-0.03 to +18
+150
See SOA Curve
-65 to +150
1.2
1
0.8
0.6
SOA
0.4
0.2
0
0 5 10 15 20 25
VIN - VOUT (V)
Safe Operation Area (SOA) Curve
Unit
V
°C
°C
ESD Susceptibility
Symbol
HBM
MM
Human Body Model
Machine Model
Parameter
Rating
4
400
Unit
kV
V
Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only; functional
operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be affected by exposure to
absolute maximum rating conditions for extended periods of time.
Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling and
transporting these devices
ZLDO1117
Document number: DS32018 Rev. 6 - 2
2 of 14
www.diodes.com
July 2012
© Diodes Incorporated


Part Number ZLDO1117
Description 1A LOW DROPOUT POSITIVE REGULATOR
Maker Diodes
Total Page 14 Pages
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