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AP7217D
1.2V 600mA CMOS LDO
Features
* * * * * * * * * * * Low Current Consumption: Typ. 40A Output Voltage: 1.2V Guaranteed 600mA Output Current Dropout Voltage 850mV at 600mA Output Current Input Voltage Range: 2.5V to 5.5V Current Limit Protection Thermal shutdown Protection Stability with Low ESR Capacitors Low Temperature Coefficient SOT89-3L: Available in "Green" Molding Compound (No Br, Sb) Lead Free Finish/ RoHS Compliant (Note 1)
General Description
The AP7217D low-dropout linear regulator operates from 2.5V to 5.5V supply and delivers a guaranteed 600mA continuous load current. The space-saving SOT89-3L package is suitable for "pocket" and hand-held application.
Applications
* * * * CD and MP3 Players Cellular and PCS Phones Digital Still Camera Hand-Held Computers
Ordering Information
AP 7217D - 12 Y G - 13
Output voltage
12 : 1.2V
Package
Y : SOT89-3L
Green G : Green
Packing 13 : Tape & Reel
Device AP7217D-12YG-13
Notes:
Package Code Y
Packaging (Note 2) SOT89-3L
13" Tape and Reel Quantity Part Number Suffix 2500/Tape & Reel -13
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 2. 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.
AP7217D Rev. 2
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AP7217D
1.2V 600mA CMOS LDO
Pin Assignments
(1) SOT89-3L
( Top View ) 3 2 1 Tab is VIN VOUT VIN GND
Pin Descriptions
Pin Name GND VIN VOUT Pin No. 1 2 3 Function Ground Supply Voltage Voltage Output
Block Diagram
AP7217D Rev. 2
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AP7217D
1.2V 600mA CMOS LDO
Absolute Maximum Ratings
Symbol ESD HBM ESD MM VIN PD TMJ
Notes:
Parameter Human Body Model ESD Protection Machine Model ESD Protection Input Voltage Power Dissipation @ TA=25 C (Note 3) Maximum Junction Temperature SOT89-3L
Rating 3 450 +6 578 150
Unit KV V V mW C
3. Maximum PD is under minimum recommended pad layout condition.
Recommended Operating Conditions
Symbol VIN IOUT TA TJ Parameter Input Voltage Output Current Operating Ambient Temperature Operating Junction Temperature Min 2.5 0 -40 -40 Max 5.5 600 85 125 Unit V mA C C
AP7217D Rev. 2
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AP7217D
1.2V 600mA CMOS LDO
Electrical Characteristics
(TA = 25C, CIN = 1F, COUT = 1F, VIN=5V, unless otherwise noted) Symbol Parameter Test Conditions IQ Quiescent Current IO = 0mA VOUT Output Voltage Accuracy VOUT Temperature Coefficient Dropout Voltage Maximum Output Current Current Limit Short Circuit Current Line Regulation Load Regulation (Note 4) Power Supply Rejection Thermal Shutdown Temperature Thermal Shutdown Hysteresis JA JC
Notes:
Min 1.176 600 -
Typ. 40 1.2 100 850 850 200 0.2 15 30 55 150 30 173 51
Max 60 1.224 1300 35 55 -
Unit A V ppm / oC mV mA mA mA %/V mV mV dB C C C/W C/W
IO = 30mA -40C to 85C, IOUT = 30mA IOUT = 600mA, VOUT = 1.2V
VDROPOUT IOUT ILIMIT ISHORT VLINE VLOAD PSRR
2.5V VIN 5.5V; IOUT = 30mA 1mA IOUT 300mA 1mA IOUT 600mA VIN = 4.3V+0.5Vp-pAC, F = 1KHz IOUT = 50mA
-
Thermal Resistance SOT89-3L (Note 5) Junction-to-Ambient Thermal Resistance SOT89-3L (Note 5) Junction-to-Case
4. Regulation is measured at constant junction temperature by low duty cycle pulse testing. 5. Test condition for SOT89-3L: Devices mounted on FR-4 substrate, single sided PC board, 2oz copper, with minimum recommended pad layout, no air flow.
Typical Application
AP7217D Rev. 2
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AP7217D
1.2V 600mA CMOS LDO
Typical Performance Characteristics
Dropout Voltage vs. Output Current
1000 900
900
Current Limit vs. Input Voltage
Dropout Voltage (mV)
700 600 500 400 300 200 100
Current Limit (mA)
800
880
860
840
820
800
780
0 100 200 300 400 500 550 600
2.5
3
3.3
4
5
5.5
Output Current (mA)
Input Voltage (V)
Quiescent Current vs. Input Voltage
30 29
Quiescent Current vs. Temperature
30 29
Quiescent Current (uA)
Quiescent Current (uA)
28 27 26 25 24 23 22 21 20 2.5 3 3.3 4 5 5.5
28 27 26 25 24 23 22 21 20 -40 0 25 85 100 125
Input Voltage (V)
Temperature (C)
AP7217D Rev. 2
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AP7217D
1.2V 600mA CMOS LDO
Typical Performance Characteristics
(Continued)
Short Circuit Current vs. Input Voltage
220
Load Transient Response
Short Circuit Current (mA)
215 210 205 200 195 190 185 2.5 3 3.3 4 5 5.3 5.5
Input Voltage (V)
AP7217D Rev. 2
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AP7217D
1.2V 600mA CMOS LDO
Application Information
Input Capacitor A 1F ceramic capacitor is recommended to connect between IN and GND pins to decouple input power supply glitch and noise. The amount of the capacitance may be increased without limit. A lower ESR (Equivalent Series Resistance) capacitor allows the use of less capacitance, while higher ESR type requires more capacitance. This input capacitor must be located as close as possible to the device to assure input stability and less noise. For PCB layout, a wide copper trace is required for both IN and GND. Output Capacitor The output capacitor is required to stabilize and help the transient response of the LDO. The AP7217D is designed to have excellent transient response for most applications with a small amount of output capacitance. The AP7217D is stable with any small ceramic output capacitors of 1.0F or higher value, and the temperature coefficients of X7R or X5R type. Additional capacitance helps to reduce undershoot and overshoot during transient. For PCB layout, the output capacitor must be placed as close as possible to OUT and GND pins, and keep the leads as short as possible. The maximum power dissipation depends on the thermal resistance of IC package, PCB layout, the rate of surroundings airflow and temperature difference between junctions to ambient. The maximum power dissipation can be calculated by following formula:
PD(MAX) = ( TJ(MAX) - TA ) / JA
Where TJ(MAX) is the maximum operation junction temperature 125C, TA is the ambient temperature and the JA is the junction to ambient thermal resistance.
VIN
IIN IN CIN GND OUT
IOUT
VOUT
AP7217D
COUT
Iq
ESR
Current Limit Protection When output current at OUT pin is higher than current limit threshold, the current limit protection will be triggered and clamp the output current to approximately 850mA to prevent over-current and to protect the regulator from damage due to overheating. Short circuit protection When VOUT pin is shorted to GND or VOUT voltage is less than 200mV, short circuit protection will be triggered and clamp the output current to approximately 200mA.
Thermal Considerations Thermal Shutdown Protection limits power dissipation in AP7217D. When the operation junction temperature exceeds 150C, the Over Temperature Protection circuit starts the thermal shutdown function and turns the pass element off. The pass element turn on again after the junction temperature cools by 30C. For continuous operation, do not exceed recommend maximum operation junction temperature 125C. The power dissipation definition in device is:
PD = (VIN - VOUT) x IOUT + VIN x IQ
AP7217D Rev. 2
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AP7217D
1.2V 600mA CMOS LDO
Marking Information
(1) SOT89-3L
( Top View ) XX YWX
1 2 3
XX : N4 : AP7217D-12 Y : Year : 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : Internal code A~Z : Green
Package Information
(1) Package Type: SOT89-3L
(All Dimensions in mm)
1.40/1.75 Typ 1.60
1.7 2.35/2.60 Typ 2.48
3.94/4.25
0.4 1.9 1.3
1.45/1.55 Typ 1.50 2.90/3.10 Typ 3.00 80 (2x) 4.40/4.60 Typ 4.50 1.40/1.60 Typ 1.50
0.80/ 1.20
1.5 0.9 Land Pattern Recommendation (Unit: mm) 50 (2x)
0.36/0.48 0.41/0.53 0.36/0.48 Typ 0.42 Typ 0.47 Typ 0.42
0.35/0.43 Typ 0.39
AP7217D Rev. 2
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AP7217D
1.2V 600mA CMOS LDO
IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. LIFE SUPPORT Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated.
AP7217D Rev. 2
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