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| AME, Inc. AME5110 n General Description The AME5110 family of Fixed Frequency,High Efficiency, Synchronous Buck, DC-DC Converters, apply the latest innovations in Current-Mode Technology. Available in SOT25 package, these devices are typically twice as efficient as standard LDO' s, making them well suited for most portable applications. The AME5110 is simple to use. As with standard LDO' s,(1) Input, and (1) Output capacitor are required. The only other element is a small, low cost, 2.2H inductor. The AME5110 is availabe with fixed output voltages of 1.5V and 1.8V, or adjustable at 600mA. Using a proprietary " Extreme Green" Technology, battery life is maximized with Frequency Foldback at light Load, and 100% duty when Vin approaches Vout. 600mA / 1.2MHz PWM Buck DC-DC Converter n Typical Application Fixed Voltage Version VIN 2.2H VIN SW VOUT CIN 4.7F CER AME5110 EN GND V OUT COUT 10F CER n Features l High Efficiency " Extreme Green" l 2.5V to 5.5V Input l Short Circuit Protection l Over-Temperature Shutdown l Under-Volatge Lockout l Superb Transient Response l All AME' s Lead Free Products Meet RoHS Standards C IN 4.7F CER VIN VIN SW 22pF 2.2H VOUT Adjustable Voltage Version AME5110 EN GND VFB R1 COUT 10F CER R2 n Applications l Cellular Phones l Digital Cameras l Portable Electronics l USB Devices l MP3 Players l LDO Replacement VOUT=VFB (R1+R2)/R2 Rev. A.03 1 AME, Inc. AME5110 n Function Diagram 600mA / 1.2MHz PWM Buck DC-DC Converter 4 AMP OUT-SENSE 5 ERROR AMP SLOPE COMP OSC 0.6V REF SYNC SWITCH COMP R LATCH S Q 3 VIN SW AMP 1 RUN Light-Load / Short-Circuit Frequency Foldback COMP 2 GND 2 Rev. A.03 AME, Inc. AME5110 n Pin Configuration SOT-25 Top View 5 4 600mA / 1.2MHz PWM Buck DC-DC Converter SOT-25 Top View AME5110AEEVxxx 1. EN 2. GND 5 4 AME5110BEEVADJ 1. EN 2. GND AME5110 3. SW 4. VIN 5. VOUT AME5110 3. SW 4. VIN 5. VFB 1 2 3 1 2 3 * Die Attach: Conductive Epoxy * Die Attach: Conductive Epoxy n Pin Description Pin Number Pin Name AME5110AEEVxxx AME5110BEEVADJ Enable Control Input. Forcing this pin above 1.5V enables the part. Forcing this pin below 0.3V shuts down the device. In shutdown, all functions are disabled drawing <1A supply current. Do not leave EN floating. Ground Pin Switch Node Connection to Inductor. This pin connects to the drains of the internal main and synchronous power MOSFET switches. Main Supply Pin. Must be closely decoupled to GND, Pin2, with a 2.2F or greater ceramic capactior. Feedback Pin. Receives the feedback voltage from an external resistive divider across the output. Output Voltage for fixed version Pin Description 1 1 EN 2 2 GND 3 3 SW 4 4 VIN N/A 5 VFB VOUT 5 N/A Rev. A.03 3 AME, Inc. AME5110 n Ordering Information AME5110 x x x x xxx x 600mA / 1.2MHz PWM Buck DC-DC Converter Special Feature Output Voltage Number of Pins Package Type Operating Ambient Temperature Range Pin Configuration Number of Pins V: 5 Pin Configuration A (SOT-25) Operating Ambient Temperature Range E: -40OC to 85OC Package Type Output Voltage Special Feature 1. EN 2. GND 3. SW 4. VIN 5. VOUT 1. EN 2. GND 3. SW 4. VIN 5. VFB E: SOT-2X 150: 1.5V 180: 1.8V ADJ: Adjustable Y: Lead free & Low profile Z: Lead free B (SOT-25) n Ordering Information Part Number AME5110AEEV150Y AME5110AEEV150Z AME5110AEEV180Y AME5110AEEV180Z AME5110BEEVADJY AME5110BEEVADJZ Marking* BARww BARww BASww BASww BATww BATww Output Voltage 1.5V 1.5V 1.8V 1.8V ADJ ADJ Package TSOT-25 SOT-25 TSOT-25 SOT-25 TSOT-25 SOT-25 Operating Ambient Temperature Range -40OC to 85OC -40OC to 85OC -40OC to 85OC -40OC to 85OC -40OC to 85OC -40OC to 85OC Note: ww represents the date code and pls refer to Date Code Rule page on Package Dimension. * A line on top of the first letter represents lead free plating such as BARww. Please consult AME sales office or authorized Rep./Distributor for the availability of package type. 4 Rev. A.03 AME, Inc. AME5110 n Absolute Maximum Ratings Parameter Input Supply Voltage EN, VFB Voltages SW Voltage ESD Classification 600mA / 1.2MHz PWM Buck DC-DC Converter Symbol VIN VEN ,VFB VSW Maximum 6 VIN VIN +0.3 C* Unit V V V Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device * HBM C: 4000V+ n Recommended Operating Conditions Parameter Ambient Temperature Range Junction Temperature Range Symbol TA TJ Rating -40 to +85 -40 to +125 Unit o C C o n Thermal Information Parameter Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) Internal Power Dissipation Maximum Junction Temperature Solder Iron (10 Sec)** SOT-25 Conductive Epoxy Package Die Attach Symbol JC JA PD Maximum 81 Unit o C/W 260 o C/W mW o 400 150 350 C C o * Measure JC on center of molding compound if IC has no tab. ** MIL-STD-202G210F Rev. A.03 5 AME, Inc. AME5110 n Electrical Specifications TA=25oC. VIN=3.6V unless otherwise specified. Parameter Input Volatge Feedback Current Regulated Feedback Voltage Reference Voltage Line Regulation Symbol V IN IFB TA=25 oC V FB TA= 0 C to 85 C TA= -40oC to 85 oC V FB V IN=2.5V to 5.5V VOUT=1.5V, Regulated Output Voltage V OUT IOUT=100mA VOUT=1.8V, IOUT=100mA Output Voltage Line Regulation REGLINE V IN=2.5V to 5.5V o o 600mA / 1.2MHz PWM Buck DC-DC Converter Test Condition Min 2.5 -30 0.6860 Typ Max 5.5 +30 Units V nA 0.7 0.7 0.7 0.04 0.7140 0.7175 0.7210 0.4 1.545 V 1.854 0.4 %/V %/V V AME 5110BEEVADJZ and AME 5110BEEVADJY 0.6825 0.6790 AME 5110AEEVxxxZ and AME 5110AEEVxxxY AME 5110BEEVADJZ and AME 5110BEEVADJY AME 5110AEEVxxxZ and AME 5110AEEVxxxY 1.455 1.746 1.5 1.8 0.04 V IN =3V, VFB =0.5V Duty Cycle < 35% Switch Current Limit IC L V IN =3V, VOUT=90% Duty Cycle < 35% Output Voltage Load Regulation Shutdown Current Quiescent Current 1.7 A VLOADREG ISD IQ V EN =0V, VIN =4.2V VFB =0.5V or VOUT=90% V EN =V IN =4.2V TA= -40oC to 85 oC TA= -40oC to 85 oC 5 0.1 350 1.2 310 0.4 0.35 -1 1.5 0.3 -1 +1 0.5 0.45 +1 1 500 % A Oscillator Frequency RDSON of P-Channel FET RDSON of N-Channel FET Switch Leakage Current EN Input Threshold (High) EN Input Threshold (Low) EN Input Current 6 fOSC RDSON(P) RDSON(N) ISW V EH V EL IEN V IN =2.5V & IOUT=100mA V FB =0V or V OUT=0V ISW =100mA ISW= -100mA V EN =0V, VSW =0V or 5V,VIN=5V TA= -40oC to 85oC TA= -40 C to 85 C TA= -40oC to 85oC o o MHz kHz A V A Rev. A.03 AME, Inc. AME5110 Shutdown Current vs VIN 0.7 0.6 1.6 1.575 600mA / 1.2MHz PWM Buck DC-DC Converter Output Voltage vs. Load Current Shutdown Current (A) Output Voltage (V) EN=0V ILOAD=0A TA=25oC 2.7 3 3.6 4.2 4.5 5 5.5 0.5 0.4 0.3 0.2 0.1 0 2.5 1.55 1.525 1.5 1.475 1.45 1.425 1.4 VIN =3.6V TA =25oC 0 100 200 300 400 500 600 700 800 900 1000 1100 VIN (V) Load Current (mA) EN Threshold-Turn On vs. VIN 1.6 EN Threshold-Turn Off vs. VIN 1.6 EN Threshold-Turn Off (V) EN Threshold-Turn On (V) 1.4 1.2 1 0.8 0.6 0.4 0.2 0 2.5 VIN =3.6V TA =25oC 2.7 3 3.6 4.2 4.5 5 5.5 1.4 1.2 1 0.8 0.6 0.4 0.2 0 2.5 VIN =3.6V TA =25 oC 2.7 3 3.6 4.2 4.5 5 5.5 VIN (V) VI N (V) Supply Current vs Supply Voltage 160 Oscillator Frequency vs. Supply Voltage 1.8 Oscillator Frequency (MHz) 140 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 2.5 V OUT=1.5V ILOAD=100mA TA=25 oC 2.7 3 3.6 4.2 4.5 5 5.5 Supply Current (A) 120 100 80 60 40 20 0 2.5 3 3.5 4 4.5 5 5.5 V OUT=1.5V ILOAD =0A TA=25 oC Input Voltage (V) Supply Voltage (V) Rev. A.03 7 AME, Inc. AME5110 EN Leakage Current vs. VIN 0.006 600mA / 1.2MHz PWM Buck DC-DC Converter Supply Current vs. Temp 120 110 EN Leakage Current (A) 0.005 Supply Current (A) 100 90 80 70 60 50 40 -50 VIN =EN=3.6V VOUT=1.5V ILOAD=0mA -40 -25 0 25 50 75 100 125 0.004 0.003 0.002 VIN=3.6V EN=0V TA =25oC 2.7 3.6 4.2 4.5 5 5.5 0.001 0 2.5 VIN (V) Temperature (oC) RDSON vs Input Voltage 0.42 EN Threshold-Turn On vs. Temp 1.6 EN Threshold-Turn On (V) 1.4 1.2 1 0.8 0.6 0.4 0.2 0 -50 V IN =3.6V V OUT=1.5V ILOAD =0mA -40 -25 0 25 50 75 100 125 0.40 MAIN SWITCH RDSO N () 0.38 0.36 0.34 SYNCHRONOUS SWITCH VOUT=1.5V TA =25oC 2 2.5 3 3.5 4 4.5 5 0.32 0.30 Input Voltage (V) Temperature (oC) VOUT vs. Temperature 1.54 EN Threshold-Turn Off vs. Temp 1.6 EN Threshold-Turn Off (V) 1.52 1.5 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -50 VIN=3.6V VOUT=1.5V ILOAD=0mA -40 -25 0 25 50 75 100 125 VOUT (V) 1.48 1.46 1.44 1.42 1.4 -50 V IN =EN=3.6V V OUT=1.5V ILOAD=100mA -40 -25 0 25 50 o 75 100 125 Temperature ( C) Temperature (oC) 8 Rev. A.03 AME, Inc. AME5110 EN Leakage Current vs. Temp 0.025 600mA / 1.2MHz PWM Buck DC-DC Converter EN Leakage Current (A) 0.02 0.015 0.01 0.005 0 -50 -40 -25 0 25 50 75 100 125 Temperature (oC) Discontinuous Operation SW 2V/div Vout 20mV/div AC Coupled IL 100mV/div V IN=3.6V V OUT =1.5V ILOAD=50mA TA=25oC 1S/DIV Rev. A.03 9 AME, Inc. AME5110 n Date Code Rule Marking A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A Date Code W W W W W W W W W W W W W W W W W W W W Year xxx0 xxx1 xxx2 xxx3 xxx4 xxx5 xxx6 xxx7 xxx8 xxx9 600mA / 1.2MHz PWM Buck DC-DC Converter n Tape and Reel Dimension SOT-25 P W AME PIN 1 AME Carrier Tape, Number of Components Per Reel and Reel Size Package SOT-25 Carrier Width (W) 8.00.1 mm Pitch (P) 4.00.1 mm Part Per Full Reel 3000pcs Reel Size 1801 mm 10 Rev. A.03 AME, Inc. AME5110 n Tape and Reel Dimension TSOT-25 P 600mA / 1.2MHz PWM Buck DC-DC Converter W AME PIN 1 AME Carrier Tape, Number of Components Per Reel and Reel Size Package TSOT-25 Carrier Width (W) 8.00.1 mm Pitch (P) 4.00.1 mm Part Per Full Reel 3000pcs Reel Size 1801 mm Rev. A.03 11 AME, Inc. AME5110 n Package Dimension SOT-25 Top View D L 600mA / 1.2MHz PWM Buck DC-DC Converter Side View SYMBOLS A A1 MILLIMETERS MIN MAX INCHES MIN MAX 1.20REF 0.00 0.30 2.70 1.40 0.15 0.55 3.10 1.80 0.0472REF 0.0000 0.0118 0.1063 0.0551 0.0059 0.0217 0.1220 0.0709 H E b D E S1 e c1 e H L 1 S1 1.90 BSC 2.60 3.00 0.07480 BSC 0.10236 0.11811 0.0146BSC o 0.37BSC 0 o Front View A 10 0o 10o 0.95BSC 0.0374BSC b TSOT-25 Top View D L A1 Side View SYMBOLS A+A1 b MILLIMETERS MIN 0.90 0.30 0.09 2.70 1.40 INCHES MIN 0.0354 0.0118 0.0035 0.1063 0.0551 MAX 1.25 0.50 0.25 3.10 1.80 MAX 0.0492 0.0197 0.0098 0.1220 0.0709 H E c D E S1 e c1 e H L 1 S1 1.90 BSC 2.40 3.00 0.07480 BSC 0.09449 0.11811 0.0138BSC o 0.35BSC 0 o Front View A 10 0o 10o 0.95BSC 0.0374BSC b 12 A1 Rev. A.03 www.ame.com.tw E-Mail: sales@ame.com.tw Life Support Policy: These products of AME, Inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president of AME, Inc. AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. (c) AME, Inc. , October 2006 Document: 2073-DS5110-A.04 Corporate Headquarter AME, Inc. 2F, 302 Rui-Guang Road, Nei-Hu District Taipei 114, Taiwan. Tel: 886 2 2627-8687 Fax: 886 2 2659-2989 U.S.A. (Subsidiary) Analog Microelectronics, Inc. 3100 De La Cruz Blvd., Suite 201 Santa Clara, CA. 95054-2438 Tel : (408) 988-2388 Fax: (408) 988-2489 |
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