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| AP1120 DUAL 1A LOW DROPOUT POSITIVE REGULATOR Features * * * * * * * * 1.3V maximum dropout at full load current Fast transient response Output current limiting for each channel Built-in thermal shutdown each channel Good noise rejection Dual output ch1=3.3V, ch2=2.5V (1.8V for B version) Lead-Free Package: SOP-8L Lead Free Finish/RoHS Compliant for Lead Free products (Note 1) General Description AP1120 series are low dropout positive regulator to provide 1A output current capability. The product is specifically designed to provide well-regulated supply for low voltage IC applications such as high-speed bus termination and low current 3.3V/2.5V or 3.3V/1.8V logic supply. AP1120 series are guaranteed to have <1.3V dropout at full load current making it ideal to provide well regulated outputs dual channels with up to 18V input supply. Applications * * PC peripheral Communication Connection Diagram (Top View) GND1 1 VIN1 2 GND2 3 VIN2 4 AP1120 8 3.3V 7 3.3V 6 2.5V (1.8V) 5 2.5V (1.8V) Ordering Information AP 1120 X X X X Package S : SOP-8L Vout Blank : CH1=3.3V CH2=2.5V B : CH1=3.3V CH2=1.8V Lead Free L : Lead Free Package Packing -U -13 : Tube : Taping Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device Lead-free Package Packaging Code (Note 2) S SOP-8L Quantity 100 Tube Part Number Suffix -U 13" Tape and Reel Quantity Part Number Suffix 2500/Tape & Reel -13 AP1120S Note: 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. AP1120 Rev. 1 1 of 7 www.diodes.com SEPTEMBER 2006 (c) Diodes Incorporated AP1120 DUAL 1A LOW DROPOUT POSITIVE REGULATOR Pin Descriptions NAME GND1/2 3.3V(Vout1) 2.5V/1.8V (Vout2) Ground The output of the regulator. A minimum of 10uF capacitor (0.15 ESR 20) must be connected from this pin to ground to insure stability. The input pin of regulator. Typically a large storage capacitor (0.15 ESR 20) is connected from this pin to ground. FUNCTION VIN1/2 Block Diagram 2 Vin 1 + + 1.25V CURRENT LIMIT + Thermal Shutdown 4 Vin 2 + + 1.25V CURRENT LIMIT + Thermal Shutdown + + 7,8 Vout 1 AP1120 Rev. 1 2 of 7 www.diodes.com - - - 1 GND 1 5,6 Vout 2 3 GND 2 SEPTEMBER 2006 (c) Diodes Incorporated AP1120 DUAL 1A LOW DROPOUT POSITIVE REGULATOR Typical Circuit 5V C1 100uF GND1 3.3V Vin1 3.3V 3.3V/1A GND2 2.5V Vin2 2.5V C2 100uF 2.5V/1A C3 100uF (3.3V/2.5V Dual output ) Absolute Maximum Ratings Symbol VIN PD TST TOP Parameter DC Supply Voltage Power Dissipation Storage Temperature Operating Junction Temperature Range Rating -0.3 to 18 V Internally Limited -65 to +150 0 to +150 o o Unit V C C AP1120 Rev. 1 3 of 7 www.diodes.com SEPTEMBER 2006 (c) Diodes Incorporated AP1120 DUAL 1A LOW DROPOUT POSITIVE REGULATOR Electrical Characteristics (Under Operating Conditions) PARAMETER CONDITIONS IOUT = 10mA, TA = 25oC, AP1120(B) - VOUT1 4.8VVIN12V IOUT = 10mA, TA = 25oC, AP1120 - VOUT2 4VVIN12V IOUT = 10mA, TA = 25oC, AP1120B - VOUT2 4VVIN12V IO=10mA,VOUT+1.5V O Output Voltage Line Regulation Load Regulation Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current Thermal Regulation Ripple Rejection Temperature Stability (VIN-VOUT) = 5V 0oCTj125oC (Note 5) TA=25 oC, 30ms pulse F=120Hz,COUT=25uF Tantalum, IOUT=1A IO=10mA JA Thermal Resistance SOP-8L: Control Circuitry/Power Transistor (Note 6) Junction-to-Ambient (No CH1 or CH2 only heat sink; No air flow) CH1 & CH2 and PD1=PD2 SOP-8L: Control Circuitry/Power Transistor JC Thermal Resistance (Note 6) CH1 or CH2 only Junction-to-Case CH1 & CH2 and PD1=PD2 Note: 3. C/W O C/W 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. 4. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the input/output differentially and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range. 5. Quiescent current is defined as the minimum output current that requires maintaining regulation. At 12V input/output differential the device is guaranteed to regulate if the output current is greater than 10mA. 6. Vout1 and Vout2 are connected to the PCB copper area 5.5mm*5.5mm separately. If you need large PD or lower Tc & Tj, please connect to the large copper area >> 5.5mm*5.5mm (like 10mm*10mm). AP1120 Rev. 1 4 of 7 www.diodes.com SEPTEMBER 2006 (c) Diodes Incorporated AP1120 DUAL 1A LOW DROPOUT POSITIVE REGULATOR Typical Performance Characteristics 2. 0 1. 8 0.20 Output Voltage Deviation (%) 1. 6 0 I load=800mA Dropout Voltage (V) 1. 4 1. 2 1. 0 0. 8 0. 6 0. 4 0. 2 0 0 250 Tj = 125 oC Tj = 25 oC -0.20 -0.40 -0.80 Dropout Voltage vs Output Current 2 1.5 1 Output Current (mA) 500 750 1000 -1 -25 0 Temperature (oC) 25 50 75 100 125 Load Regulation vs Temperature Output Voltage Change (%) 1 0. 5 0 -0.5 -1 -1.5 -2 -50 -25 0 25 50 75 100 125 150 0.8 Output Voltage Deviation (%) 0.6 0.4 0.2 0 Percent Change in Output Voltage vs Temperature Output Voltage Deviation (mV) Input Voltage (V) Load Current (A) Output Voltage Deviation (mV) 7.5 6.5 5.5 40 20 0 -20 -40 Cin=1uF Cout=10uF Tantalum 30 20 10 0 -10 -20 2 1 0 -1 0 10 20 Temperature (oC) 2 4 Line Regulation C in = 1uF C out = 10 uF Tantalum Preload = 100mA Input Voltage (V) 6 8 10 12 0 20 40 60 TIME (us) 80 100 120 140 160 180 200 30 TIME (us) 40 50 60 70 80 90 100 Line Transient Response Load Transient Response AP1120 Rev. 1 5 of 7 www.diodes.com SEPTEMBER 2006 (c) Diodes Incorporated AP1120 DUAL 1A LOW DROPOUT POSITIVE REGULATOR Marking Information ( Top View ) 8 5 Logo Part Number AP1120 X YY WW X X Blank : 3.3V/2.5V version B : 3.3V/1.8V version L: Lead free ID code: internal Xth week: 01~52 Year: "01" =2001 "02" =2002 ~ 1 4 SOP-8L Package Information Package Type: SOP-8L 5.79/6.20 3.70/4.10 0.08/0.25 0.254 0.38/1.27 Gauge Plane Seating Plane Detail "A" 7~9 1.30/1.50 1.75max. 0.20typ 7~9 0.35max. 45 Detail "A" 3.70/4.10 1.27typ 4.80/5.30 0.3/0.5 AP1120 Rev. 1 6 of 7 www.diodes.com SEPTEMBER 2006 (c) Diodes Incorporated AP1120 DUAL 1A LOW DROPOUT POSITIVE REGULATOR 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. AP1120 Rev. 1 7 of 7 www.diodes.com SEPTEMBER 2006 (c) Diodes Incorporated |
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