Diodes AP1117, AP1117I User Manual

AP1117/AP1117I

1A DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR

Description

AP1117 is a low dropout positive adjustable or fixed-mode regulator with 1A output current capability. The product is voltage specifically designed to provide well-regulated supply for low IC applications such as high-speed bus termination and low current 3.3V logic supply. AP1117 is also well suited for other applications such as VGA cards. AP1117 is guaranteed to have lower than 1.4V dropout at full load current making it ideal to provide well-regulated outputs of 1.25 to 5.0 with 6.4V to 18V input supply. AP1117 is available both in commercial temperature grade (AP1117) and in industrial temperature range (AP1117I) (TO252 and SOT223).

Pin Assignments

SOT89-3

( Top View )

3 2 1

Tab is V

( Top View )

OUT

SOT223

VIN

OUT

Adj (GND)

Features

VIN

 1.4V Maximum Dropout at Full Load Current  Fast Transient Response  Output Current Limiting  Built-in Thermal Shutdown  Good Noise Rejection  3-Terminal Adjustable or Fixed 1.5V, 1.8V,2.5V, 3.3V, 5.0V  Operating Junction Temperature range

 0°C  T  -20°C  T  -40°C  T

 Lead-Free Packages: SOT223, TO252, SOT89-3, TO263 and

TO220-3  Totally Lead-Free; RoHS Compliant (Notes 1 & 2)

 SOT223, TO252, SOT89-3, TO263 and TO220-3: Available in

“Green” Molding Compound (No Br, Sb)  Halogen and Antimony Free. “Green” Device (Note 3)

 +125°C (All packages)

 +125°C (see ordering information)

( Front View )

( Top View )

Tab is V

Tab is VOUT

OUT

TO220-3

3 2 1

TO252 and TO263

VOUT

VOUT Adj (GND)

OUT

Adj (GND)

Applications

 PC Peripheral  Communication  Consumer Equipment

Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com quality/lead_free.html 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.

Tab is VOUT

Adj (GND)

AP1117/AP1117I

Document number: DS31009 Rev. 23 - 2

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Typical Applications Circuit

AP1117/AP1117I



( 5V/3.3V fixed output )

( 5V/2.5V ADJ output )

Pin Descriptions

Pin Number I/O Pin Name Function

1 I Adj (GND)

2 O V

3 I VIN

OUT

A resistor divider from this pin to the V Fixed-Mode).

The output of the regulator. A minimum of 4.7µF capacitor (0.15  ESR  0.5) must be connected

from this pin to ground to insure stability.

The input pin of regulator. Typically a large storage capacitor is connected from this pin to ground to

insure 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 V properly. A minimum of 4.7µF capacitor (0.15  ESR 0.5) must be connected from this pin to ground to insure stability.

pin and ground sets the output voltage (Ground only for

OUT

Functional Block Diagram

)

(1 VV



REFo

in order for the device to regulate

OUT

AP1117/AP1117I

Document number: DS31009 Rev. 23 - 2

Thermal

Shutdown

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CURRENT

LIMIT

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1.25V

GND

(FIXED)

Adj

June 2013

AP1117/AP1117I

Absolute Maximum Ratings (@T

= +25°C, unless otherwise specified.)

Symbol Parameter Rating Unit

VIN

TMJ

DC Supply Voltage -0.3 to +18 V Maximum Junction Temperature +150 °C Power Dissipation

SOT89-3 SOT223 TO220-3 TO252

Internally limited by maximum junction temperature of +150°C (Note 4)

TO263

TST

Notes: 4. AP1117 contains an internal thermal limiting circuit that is designed to protect the regulator in the event that the maximum junction temperature exceeded. When activated, typically at +150°C, the regulator output switches off and then back on as the die cools

Storage Temperature -65 to +150 °C

Recommended Operating Conditions (@T

= +25°C, unless otherwise specified.)

Symbol Parameter Min Max Unit

TOP Operating Junction Temperature Range

Note: 11. 22uF is suggested for Cin/C

value when application is required to work under 0℃.

out

AP1117 0 +125

AP1117I -40 +125

°C

Electrical Characteristics (@T

= +25°C, unless otherwise specified.)

Parameter Conditions Min Typ Max Unit

= +25°C, (VIN-

Reference Voltage AP1117-ADJ

AP1117-1.5

AP1117-1.8

Output Voltage

AP1117-2.5

AP1117-3.3

AP1117-5.0

Line Regulation AP1117-XXX

AP1117-ADJ

AP1117-1.5

Load Regulation

AP1117-1.8

AP1117-2.5

Notes: 5. See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a constant junction temperature by low duty cycle pulse testing. Load regulation is measured at the output lead = 1/18” from the package.

6. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the difference between input

and output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range.

= 10mA

= 10mA, TA = +25°C,

OUT

3V  V I

3.3V  V I

4V  V I

4.8V  V I

6.5V  V I

T V

 12V

= 10mA, TA = +25°C,

OUT

 12V

= 10mA, TA = +25°C,

OUT

 12V

= 10mA, TA = +25°C,

OUT

 12V

= 10mA, TA = +25°C,

OUT

 12V

= 10mA,V

= 25°C

= 3.3V,V

= +25°C (Notes 5, 6)

= 3V, 0mA < IO < 1A,

= +25°C (Notes 5, 6)

= 3.3V, 0mA < IO < 1A,

= +25°C (Notes 5, 6)

= 4V, 0mA < IO < 1A,

= +25°C (Notes 5, 6)

) = 1.5V

OUT

+1.5V < V

OUT

= 0, 0mA < IO < 1A,

ADJ

< 12V,

1.225 1.250 1.275 V

1.470 1.500 1.530 V

1.764 1.800 1.836 V

2.450 2.500 2.550 V

3.235 3.300 3.365 V

4.900 5.000 5.100 V

— — 0.2 %

— — 1 %

— 12 15 mV

— 15 18 mV

— 20 25 mV

AP1117/AP1117I

Document number: DS31009 Rev. 23 - 2

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AP1117/AP1117I

Electrical Characteristics (cont.) (@T

= +25°C, unless otherwise specified.)

Parameter Conditions Min Typ Max Unit

= 5V, 0  I

= +25°C (Notes 5, 6)

= 8V, 0  I

= +25°C (Notes 5, 6)

= 800mA, V

OUT

0°C  T

OUT

Load Regulation (cont.)

Dropout Voltage (V

IN-VOUT

)

AP1117-3.3

AP1117-5.0 AP1117-ADJ/1.5/1.8

2.5/3.3/5.0 AP1117-ADJ/1.5/1.8

Dropout Voltage

IN-VOUT

)

2.5/3.3/5.0 AP1117I-ADJ/1.5/1.8

OUT

V

= 1A,

OUT

= 1% V

2.5/3.3/5.0 Current Limit Minimum Load Current

(Note 7) Thermal Regulation

Ripple Rejection

Temperature Stability

AP1117-ADJ/1.5/1.8

2.5/3.3/5.0

AP1117-XXX T

= +25°C, 30ms pulse

F = 180Hz, C

= 25µF Tantalum, I

OUT

AP1117-XXX

= 10mA

IN-VOUT

0°C  T

= V

OUT

 +125°C

+3V

SOT89-3: Control Circuitry/Power Transistor (Note 8)



Thermal Resistance

Junction-to-Ambient 

SOT223: Control Circuitry/Power Transistor (Note 9) TO252: Control Circuitry/Power Transistor (Note 8)

TO220-3: Control Circuitry/Power Transistor (Note 8) TO263: Control Circuitry/Power Transistor (Note 8)

SOT89-3: Control Circuitry/Power Transistor (Note 8)



Thermal Resistance

Junction-to-Case

SOT223: Control Circuitry/Power Transistor (Note 9) TO252: Control Circuitry/Power Transistor (Note 8) TO220-3: Control Circuitry/Power Transistor (Note 8) TO263: Control Circuitry/Power Transistor (Note 8)

Notes: 7. Quiescent current is defined as the minimum output current required in maintaining regulation. At 12V input/output differential the device is guaranteed to regulate if the output current is greater than 10mA.

8. Test conditions for SOT89-3, TO220-3, TO252 and TO263: Devices mounted on FR-4 substrate, single sided PC board, 2oz copper,with minimum recommended pad layout, no air flow. The case point of 

9. Test conditions for SOT223: Devices mounted on FR-4 substrate, single sided PC board, 2oz copper, with 5mm x 5mm thermal pad layout, no air flow. The case point of 

is located on the thermal tab.

 1A,

OUT

 1A,

OUT

= 1%

OUT

 +125°C

0°C  T

OUT

-40°C  T

) = 5V

= 1A

OUT

is located on the thermal tab.

 +125°C

— 26 33 mV

— 40 50 mV

— 1.2 1.3 V

— 1.3 1.4 V

1. 1 — — A

— 5 10 mA — 0.008 0.040 %/W

— — — — — 60 70 dB — 0.5 — % —

— — — —

— — — — —

164 107

73 78 60

42 15 12

3.5

— — — — —

°C/W

AP1117/AP1117I

Document number: DS31009 Rev. 23 - 2

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