View AP7217A09_4975154.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

AP7217A
3.3V 600mA CMOS LDO
Features
* * * * * * * * * * * Very Low Dropout Voltage Low Current Consumption: Typ. 50A Output Voltage: 3.3V Guaranteed 600mA (min) Output Input Range up to 5.5V Current Limiting Stability with Low ESR Capacitors Thermal shutdown Protection Low Temperature Coefficient SOP-8L and SOP-8L-EP: Available in "Green" Molding Compound (No Br, Sb) Lead Free Finish/ RoHS Compliant (Note 1)
General Description
The AP7217A low-dropout linear regulator operates from a 3.3V to 5.5V supply and delivers a guaranteed 600mA (min) continuous load current. The high-accuracy output voltage is preset to an internally trimmed voltage. An active-low open-drain reset output remains asserted for at least 200ms (TYP) after output voltage reaches regulation. The space-saving SOP-8L and SOP-8L-EP packages are suitable for "pocket" and hand-held application.
Applications
* * * * * HD/ Blue Ray DVD & MP3/4 Players CD and MP3 Players Cellular and PCS Phones Digital Still Camera Hand-Held Computers
Typical Application Circuit
U1 VIN
100K CIN 1uF VDOUT
4
VIN
VOUT
2
VROUT
ON
AP7217A
6 VDOUT GND 7 EN 8
OFF COUT 1uF
AP7217A Rev. 3 DS31423
1 of 10 www.diodes.com
OCTOBER 2009
(c) Diodes Incorporated
AP7217A
3.3V 600mA CMOS LDO
Ordering Information
AP 7217A - 33 XX G - 13
Output voltage
33 : 3.3V
Package S : SOP-8L SP : SOP-8L-EP
Packaging (Note 2) SOP-8L SOP-8L-EP
Green G : Green
Packing 13 : Tape & Reel
Device AP7217A-33SG-13 AP7217A-33SPG-13
Notes:
Package Code S SP
13" Tape and Reel Quantity Part Number Suffix 2500/Tape & Reel -13 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.
Pin Assignments
( Top View )
GND 1 8 7 AP7217A GND 3 VIN 4 6 VD OUT 5 GND EN GND
GND 1
( Top View )
8 7 EN GND
VR OUT 2
VROUT 2 GND 3 VIN 4
6 VDOUT 5 GND
SOP-8L
SOP-8L-EP
Pin Descriptions
Pin Name GND VROUT VIN VDOUT EN Pin No. 1, 3, 5, 7 2 4 6 8 Description Ground Voltage Output Supply Voltage VD Output (Reset on I/P) Enable (VR On/Off)
AP7217A Rev. 3 DS31423
2 of 10 www.diodes.com
OCTOBER 2009
(c) Diodes Incorporated
AP7217A
3.3V 600mA CMOS LDO
Block Diagram
EN On Off
Enable VIN
Bandgap 1.2V R1 VDOUT
ERROR AMP
Current Limit VROUT
+
+ VD Comp.
R3 R2
R4
GND
Absolute Maximum Ratings
Symbol ESD HBM ESD MM VIN IOUT VROUT PD TJ Parameter Human Body Model ESD Protection Machine Model ESD Protection Input Voltage Output Current Output Voltage SOP-8L Power Dissipation SOP-8L-EP Operating Junction Temperature Range Rating 3.5 500 +6 PD/ (VIN-VO) GND - 0.3 ~ VIN+ 0.3 1010 1650 -40 to +125 Unit KV V V mA V mW C
Recommended Operating Conditions
Symbol VIN IOUT TA Parameter Input Voltage Output Current Operating Ambient Temperature Min 3.3 0 -40 Max 5.5 600 85 Unit V mA C
AP7217A Rev. 3 DS31423
3 of 10 www.diodes.com
OCTOBER 2009
(c) Diodes Incorporated
AP7217A
3.3V 600mA CMOS LDO
Electrical Characteristics
(TA = 25C, CIN = 1F, COUT = 1F, VEN = VIN, unless otherwise noted)
Symbol IQ ISTB
Parameter Quiescent Current Standby Current Output Voltage Accuracy VOUT Temperature Coefficient Dropout Voltage Maximum Output Current Current Limit Short Circuit Current Line Regulation Load Regulation Power Supply Rejection EN Input Threshold Enable Pin Current Detect fall voltage VHysteresis
Test Conditions IO = 0mA VEN = Off VIN = 5.0V IO = 30mA, VIN = 5V -40C to 85C, IOUT = 30mA IOUT = 300mA IOUT = 600mA VIN = 5.3V VIN = 5.3V VIN = 5.3V 4.3V VIN 5.5V; IOUT = 30mA 1mA IOUT 100mA, VIN = 5.3V VIN = 4.3V+ 0.5Vp-pAC, F = 1KHz IOUT = 50mA Output ON Output OFF
Min -
Typ. 50 15
Max 80 25 3.366
Unit A A V ppm / oC
3.234
3.300 100 350 800
VROUT
VDROPOUT IOUT ILIMIT Ishort VLINE/VIN/VOUT VOUT PSRR VEH VEL IEN
VDF VD Hysteresis Range
400 900
mV mA
600 750 50 0.01 15 55 1.6 -0.1 3.23 VDF x1.02 0.25 0.1 3.37 VDF x1.08
0.2 50
mA mA %/V mV dB V V A V V mA
3.3 VDF x1.05 20 30 200 134 82 28 12
IVDout tRP JA JC
Notes:
VDout = 0.5V VIN = 2.0V 3.0V VDOUT Delay Time VIN = 1.8V to VDF+ 1V Thermal Resistance SOP-8L (Note 3) Junction-to-Ambient SOP-8L-EP (Note 4) Thermal Resistance SOP-8L (Note 3) Junction-to-Case SOP-8L-EP (Note 4) VD Supply Current
180
-
mSec C/W C/W
3. Test condition for SOP-8L: Device mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout. 4. Test condition for SOP-8L-EP: Device mounted on 2oz copper, minimum recommended pad layout on top & bottom layer with thermal vias, double sided FR-4 PCB.
AP7217A Rev. 3 DS31423
4 of 10 www.diodes.com
OCTOBER 2009
(c) Diodes Incorporated
AP7217A
3.3V 600mA CMOS LDO
Typical Performance Characteristics
Output Current vs. Dropout Voltage (Vout=3.3V)
900 800
800 700
Input Voltage vs. Max Iout
Dropout Voltage (m V)
700 600 500 400 300 200 100 0 30mA 100mA 300mA 600mA
Max Iout (m A)
600 500 400 300 200 100 0 3.6V 4.3V 5.0V 5.3 5.5V
Output Current
Quiescent Current vs. Tem perature
75
80
Input Voltage
Quiescent Current vs. Input Voltage
Quiescent Current (uA)
Quiescent Current (uA)
70 65 60 55 50 45 40 -40 0 25 85 100
70 60 50 40 30 20 10 0 3.6V 56V 58V 61V 5.5V
Tem perature
Input Voltage
AP7217A Rev. 3 DS31423
5 of 10 www.diodes.com
OCTOBER 2009
(c) Diodes Incorporated
AP7217A
3.3V 600mA CMOS LDO
Typical Performance Characteristics
Short Current vs. Input Voltage
65 64 63 62 61 60 59 58 57 56 55 3.6V 4.3V 5V 5.3V 5.5V
(Continued)
Short Current vs. Tem perature (Vin=5.5V)
64 62
Short Current (m A)
Short Current (m A)
60 58 56 54 52 50 -40 25 85 105
Input Voltage
Stand-by Current vs. Input Voltage
24
35
Tem perature
Stand-by Current vs. Tem perature
Stand-by Current (uA)
21
Stand-by Current (uA)
30 25 20 15 10 5 0
18
15
12 3.6V 4V
Input Voltage
4.3V
5V
5.5V
-40
0
Tem perature
25
85
105
125
Load Transient Response
Load Transient Response
AP7217A Rev. 3 DS31423
6 of 10 www.diodes.com
OCTOBER 2009
(c) Diodes Incorporated
AP7217A
3.3V 600mA CMOS LDO
Timing Diagram
tRP
200mSec-TYP.
1.6V
VIN VDOUT EN VROUT
Application Note
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 AP7217A is designed to have excellent transient response for most applications with a small amount of output capacitance. The AP7217 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. ENABLE/SHUTDOWN Operation The AP7217A is turned on by setting the EN pin high, and is turned off by pulling it low. If this feature is not used, the EN pin should be tied to IN pin to keep the regulator output on at all time. To ensure proper operation, the signal source used to drive the EN pin must be able to swing above and below the specified turn-on/off voltage thresholds listed in the Electrical Characteristics section under VIL and VIH. VROUT 0V 3.3V VDOUT
EN=0 EN=1
Thermal Considerations Thermal Shutdown Protection limits power dissipation in AP7217A. 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 40C. For continuous operation, do not exceed absolute maximum operation junction temperature 125C. The power dissipation definition in device is:
PD = (VIN - VOUT) x IOUT + VIN x IQ
The maximum power dissipation depends on the thermal resistance of IC package, PCB layout, the rate of surroundings airflow and temperature difference between junction 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.
AP7217A Rev. 3 DS31423
7 of 10 www.diodes.com
OCTOBER 2009
(c) Diodes Incorporated
AP7217A
3.3V 600mA CMOS LDO
Application Note
(Continued)
Vin
Iin IN OUT
Iout
Vout
C
AP7217A
GND
Short circuit protection When VROUT pin is shorted to GND or VROUT voltage is less than 200mV, short circuit protection will be triggered and clamp the output current to approximately 50mA. VDOUT (reset output) ---Open-Drain Active-Low reset output--In general, VDOUT is pulled up by a resistor (100Kohm) to VIN. The AP7217A microprocess (uP) supervisory circuitry asserts a guaranteed logic-low reset during power-up and power-down. Reset is asserted asserts when VIN is below the reset threshold and remain asserted for at least tRP after VIN rises above the reset threshold. As long as VIN is lower than the reset threshold, VDOUT remains at logic "0". When VIN become higher than VTH, a logic "1" is asserted after a time delay defined by tRP.
Co
ESR Iq
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 750mA to prevent over-current and to protect the regulator from damage due to overheating.
Marking Information
(1) SOP-8L
( Top View )
8 5
Logo Part Number 7217A-33 YY WW X X
1 4
YY : Year : 08, 09,10~ WW : Week : 01~52; 52 represents 52 and 53 week X : Internal Code G : Green
(2) SOP-8L-EP
( Top View )
8 5
Logo Part No. 7217A-33 YY WW X X E
1 4
G : Green YY : Year : 08, 09,10~ WW : Week : 01~52; 52 represents 52 and 53 week X : Internal Code SOP-8L-EP
AP7217A Rev. 3 DS31423
8 of 10 www.diodes.com
OCTOBER 2009
(c) Diodes Incorporated
AP7217A
3.3V 600mA CMOS LDO
Package Information
(1) Package Type: SOP-8L
(All Dimensions in mm)
3.85/3.95
5.90/6.10
0.10/0.20
0.254 0.62/0.82
Gauge Plane Seating Plane
Detail "A"
7~9 1.30/1.50 1.75max. 0.15/0.25
0.35max. 45
7~9
Detail "A"
0/8
1.27typ 4.85/4.95
0.3/0.5
8x-0.60 5.4 6x-1.27 8x-1.55
Land Pattern Recommendation (Unit: mm)
(2) Package Type: SOP-8L-EP
Detail "A" Exposed pad
7~9
3.85/3.95
5.90/6.10
3.70/4.10
45 0.35max.
7~9 1 1.30/1.50 1.75max.
0.15/0.25 3.3Ref.
1
Bottom View
0/0.13
0.254
1.27typ 4.85/4.95 1
0.3/0.5
Gauge Plane Seating Plane
0.62/0.82
Detail "A"
8x-0.60
Exposed pad
6x-1.27 8x-1.55
Land Pattem Recommendation (Unit:mm)
5.4
AP7217A Rev. 3 DS31423
9 of 10 www.diodes.com
2.4Ref.
OCTOBER 2009
(c) Diodes Incorporated
AP7217A
3.3V 600mA CMOS LDO
IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDING TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein 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 Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright (c) 2009, Diodes Incorporated www.diodes.com
AP7217A Rev. 3 DS31423
10 of 10 www.diodes.com
OCTOBER 2009
(c) Diodes Incorporated

▲Up To Search▲

Price & Availability of AP7217A09

	To Download AP7217A09 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .