AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR
Features
• • • • • • • • • 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 SOT223-3L, TO252-3L, SOT89-3L, TO263-3L and TO220-3L Packages SOT223-3L and TO252-3L: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 1)
General 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 in both commercial and industrial temperature grade.
Applications
• • PC Peripheral Communication
Ordering Information
A P 1 1 1 7 X XX X X Package
D : TO252-3L E : SOT223-3L K : TO263-3L T : TO220-3L Y : SOT89-3L
Vout Blank: Adj 15: 1.5V 18: 1.8V 25: 2.5V 33: 3.3V 50: 5.0V
Lead Free L : Lead Free G : Green (Note 1)
Packing - U : Tube -13 : Taping
Note:
1. Green is only for SOT223-3L and TO252-3L. 2. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
AP1117D AP1117E AP1117K AP1117T AP1117Y
Package Code
D E K T Y
Packaging (Note 3)
TO252-3L SOT223-3L TO263-3L TO220-3L SOT89-3L
Tube Part Number Quantity Suffix
80 75 50 50 NA -U -U -U -U NA
13” Tape and Reel Part Number Quantity Suffix
2500/Tape & Reel 2500/Tape & Reel 800/Tape & Reel NA 2500/Tape & Reel -13 -13 -13 NA -13
Lead-free
Lead-free
Lead-free
Note:
3. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
AP1117 Rev. 6
1 of 11 www.diodes.com
MARCH 2007
© Diodes Incorporated
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR
Pin Assignments
SOT223-3L
( Top View ) 3 2 1 Tab is Vout Vin Vout Adj (GND)
SOT89-3L
3 2 1 Tab is Vout Vin Vout Adj (GND)
TO220-3L FRONT VIEW 3 2 1 Tab is V out Vin Vout Adj (GND)
TO252-3L / TO263-3L
( Top View ) 3 2 1 Tab is Vout Vin Vout
Adj (GND)
Pin Descriptions
NAME
Adj (GND) Vout
I/O
I O
PIN #
1 2
FUNCTION
A resistor divider from this pin to the Vout pin and ground sets the output voltage (Ground only for Fixed-Mode). The output of the regulator. A minimum of 10uF capacitor (0.15Ω ≤ ESR ≤ 20Ω) must be connected from this pin to ground to insure stability. The input pin of regulator. Typically a large storage capacitor (0.15Ω ≤ ESR ≤ 20Ω) 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 Vout in order for the device to regulate properly.
Vin
I
3
AP1117 Rev. 6
2 of 11 www.diodes.com
MARCH 2007
© Diodes Incorporated
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR
Block Diagram
Vin
3
2
Vout
+ CURRENT LIMIT
+
1.25V
+
1
+
Thermal Shutdown
GND (FIXED)
1
Adj
Absolute Maximum Ratings
Symbol Vin TOP TMJ DC Supply Voltage Operating Junction Temperature Range (Commercial Grade) Maximum Junction Temperature Power Dissipation SOT89-3L SOT223-3L TO220-3L TO252-3L TO263-3L Storage Temperature Internally limited by maximum junction temperature of 150 oC (Note 4) -65 to +150 Parameter Rating -0.3 to 18 0 to +125 150 Unit V oC oC
-
PD
mW
TST
Note: 4.
oC
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.
AP1117 Rev. 6
3 of 11 www.diodes.com
MARCH 2007
© Diodes Incorporated
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR
Electrical Characteristics
PARAMETER
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 AP1117-1.8 Load Regulation AP1117-2.5 AP1117-3.3 AP1117-5.0 Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current (Note 7) Thermal Regulation Ripple Rejection Temperature Stability
(Under Operating Conditions)
CONDITIONS
TA = 25 C, (VIN-OUT) = 1.5V IO = 10mA o IOUT = 10mA, TA = 25 C, 3V≦VIN≦12V o IOUT = 10mA, TA = 25 C, 3.3V≦VIN≦12V o IOUT = 10mA, TA = 25 C, 4V≦VIN≦12V o IOUT = 10mA, TA = 25 C, 4.8V≦VIN≦12V o IOUT = 10mA, TA = 25 C, 6.5V≦VIN≦12V IO = 10mA,VOUT+1.5V
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