AME, Inc. 600mA / 1.2MHz PWM Buck DC-DC Converter 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, 2.2µH 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. n Typical Application Fixed Voltage Version 2.2µH VIN VOUT SW VIN AME5110 CIN 4.7µF CER COUT 10µF CER V OUT EN GND n Features l High Efficiency “ Extreme Green” Adjustable Voltage Version l 2.5V to 5.5V Input l Short Circuit Protection l Over-Temperature Shutdown 2.2µH VIN VIN VOUT SW l Under-Volatge Lockout l Superb Transient Response l All AME’ s Lead Free Products Meet RoHS Standards C IN 4.7µF CER AME5110 22pF R1 VFB EN GND R2 n Applications COUT 10µF CER VOUT=VFB (R1+R2)/R2 l Cellular Phones l Digital Cameras l Portable Electronics l USB Devices l MP3 Players l LDO Replacement Rev. A.03 1 AME, Inc. 600mA / 1.2MHz PWM Buck DC-DC Converter AME5110 n Function Diagram 4 VIN AMP OUT-SENSE 5 COMP ERROR AMP R LATCH Q 3 SW S SLOPE COMP OSC 0.6V REF SYNC SWITCH AMP 1 RUN Light-Load / Short-Circuit Frequency Foldback COMP 2 GND 2 Rev. A.03 AME, Inc. 600mA / 1.2MHz PWM Buck DC-DC Converter AME5110 n Pin Configuration SOT-25 Top View 5 SOT-25 Top View AME5110AEEVxxx 4 AME5110 5 4 1. EN 2. GND 2. GND AME5110 3. SW 4. VIN 2 3. SW 4. VIN 5. VOUT 1 AME5110BEEVADJ 1. EN 5. VFB 3 1 2 3 * Die Attach: * Die Attach: Conductive Epoxy Conductive Epoxy n Pin Description Pin Number Pin Name Pin Description 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 <1µA supply current. Do not leave EN floating. AME5110AEEVxxx AME5110BEEVADJ Rev. A.03 1 1 EN 2 2 GND Ground Pin 3 3 SW Switch Node Connection to Inductor. This pin connects to the drains of the internal main and synchronous power MOSFET switches. 4 4 VIN Main Supply Pin. Must be closely decoupled to GND, Pin2, with a 2.2µF or greater ceramic capactior. N/A 5 VFB Feedback Pin. Receives the feedback voltage from an external resistive divider across the output. 5 N/A VOUT Output Voltage for fixed version 3 AME, Inc. 600mA / 1.2MHz PWM Buck DC-DC Converter AME5110 n Ordering Information AME5110 x x x x xxx x Special Feature Output Voltage Number of Pins Package Type Operating Ambient Temperature Range Pin Configuration Pin Configuration A (SOT-25) B (SOT-25) 1. EN 2. GND 3. SW 4. VIN 5. VOUT Operating Ambient Temperature Range Package Type Number of Pins E: -40OC to 85OC E: SOT-2X V: 5 Output Voltage 150: 1.5V 180: 1.8V ADJ: Adjustable Special Feature Y: Lead free & Low profile Z: Lead free 1. EN 2. GND 3. SW 4. VIN 5. VFB n Ordering Information Part Number Marking* Output Voltage Package Operating Ambient Temperature Range AME5110AEEV150Y BARww 1.5V TSOT-25 -40OC to 85OC AME5110AEEV150Z BARww 1.5V SOT-25 -40OC to 85OC AME5110AEEV180Y BASww 1.8V TSOT-25 -40OC to 85OC AME5110AEEV180Z BASww 1.8V SOT-25 -40OC to 85OC AME5110BEEVADJY BATww ADJ TSOT-25 -40OC to 85OC AME5110BEEVADJZ BATww ADJ SOT-25 -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. 600mA / 1.2MHz PWM Buck DC-DC Converter AME5110 n Absolute Maximum Ratings Parameter Symbol Maximum Unit VIN 6 V VEN ,VFB VIN V VSW VIN +0.3 V Input Supply Voltage EN, VFB Voltages SW Voltage C* ESD Classification Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device * HBM C: 4000V+ n Recommended Operating Conditions Parameter Symbol Rating Unit Ambient Temperature Range TA -40 to +85 o C Junction Temperature Range TJ -40 to +125 o C n Thermal Information Parameter Package Die Attach Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) SOT-25 Conductive Epoxy Internal Power Dissipation Symbol Maximum Unit θJC 81 o C/W θJA 260 o C/W PD 400 mW Maximum Junction Temperature 150 o C Solder Iron (10 Sec)** 350 o C * Measure θJC on center of molding compound if IC has no tab. ** MIL-STD-202G210F Rev. A.03 5 AME, Inc. 600mA / 1.2MHz PWM Buck DC-DC Converter AME5110 n Electrical Specifications TA=25oC. VIN=3.6V unless otherwise specified. Parameter Test Condition Symbol Typ Max Units Input Volatge V IN 2.5 5.5 V Feedback Current IFB -30 +30 nA TA=25 oC Regulated Feedback Voltage V FB o o TA= 0 C to 85 C TA= -40oC to 85 oC Reference Voltage Line Regulation ∆V FB V IN=2.5V to 5.5V AME 5110BEEVADJZ and AME 5110BEEVADJY VOUT=1.5V, Regulated Output Voltage ∆V OUT AME 5110AEEVxxxZ and AME 5110AEEVxxxY IOUT=100mA VOUT=1.8V, IOUT=100mA Output Voltage Line Regulation REGLINE V IN=2.5V to 5.5V 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 0.6860 0.7 0.7140 0.6825 0.7 0.7175 0.6790 0.7 0.7210 0.04 0.4 1.5 1.545 1.455 ISD Quiescent Current IQ fOSC V EN =0V, VIN =4.2V VFB =0.5V or VOUT=90% V EN =V IN =4.2V V %/V V 1.746 AME 5110BEEVADJZ and AME 5110BEEVADJY AME 5110AEEVxxxZ and AME 5110AEEVxxxY VLOADREG Shutdown Current Oscillator Frequency 6 Min 1.8 1.854 0.04 0.4 %/V 1.7 A 5 % TA= -40oC to 85 oC 0.1 1 TA= -40oC to 85 oC 350 500 µA V IN =2.5V & IOUT=100mA 1.2 MHz V FB =0V or V OUT=0V 310 kHz RDSON of P-Channel FET RDSON(P) ISW =100mA 0.4 0.5 Ω RDSON of N-Channel FET RDSON(N) ISW= -100mA 0.35 0.45 Ω Switch Leakage Current ISW +1 µA EN Input Threshold (High) V EH V EN =0V, VSW =0V or 5V,VIN=5V TA= -40oC to 85oC o -1 1.5 o EN Input Threshold (Low) V EL TA= -40 C to 85 C EN Input Current IEN TA= -40oC to 85oC 0.3 -1 +1 V µA Rev. A.03 AME, Inc. 600mA / 1.2MHz PWM Buck DC-DC Converter AME5110 Shutdown Current vs VIN Output Voltage vs. Load Current 1.6 1.575 0.6 Output Voltage (V) Shutdown Current (µA) 0.7 0.5 0.4 0.3 0.2 EN=0V ILOAD=0A TA=25oC 0.1 0 2.5 1.55 1.525 1.5 1.475 1.45 VIN =3.6V TA =25oC 1.425 1.4 2.7 3 3.6 4.2 4.5 5 5.5 0 VIN (V) EN Threshold-Turn Off (V) EN Threshold-Turn On (V) 1.4 1.2 1 0.8 0.6 0.4 VIN =3.6V TA =25oC 0.2 2.7 3 3.6 4.2 1.4 1.2 1 0.8 0.6 0.4 VIN =3.6V TA =25 oC 0.2 0 2.5 5.5 5 4.5 2.7 3 3.6 4.2 4.5 5 5.5 VIN (V) VI N (V) Supply Current vs Supply Voltage Oscillator Frequency vs. Supply Voltage 1.8 Oscillator Frequency (MHz) 140 Supply Current (µA) 800 900 1000 1100 1.6 160 120 100 80 60 40 V OUT=1.5V ILOAD =0A TA=25 oC 20 0 3 3.5 4 4.5 Input Voltage (V) Rev. A.03 400 500 600 700 EN Threshold-Turn Off vs. VIN 1.6 2.5 300 Load Current (mA) EN Threshold-Turn On vs. VIN 0 2.5 100 200 5 5.5 1.6 1.4 1.2 1 0.8 0.6 V OUT=1.5V ILOAD=100mA TA=25 oC 0.4 0.2 2.5 2.7 3 3.6 4.2 4.5 5 5.5 Supply Voltage (V) 7 AME, Inc. 600mA / 1.2MHz PWM Buck DC-DC Converter AME5110 EN Leakage Current vs. VIN Supply Current vs. Temp 120 110 0.005 Supply Current (µA) EN Leakage Current (µA) 0.006 0.004 0.003 0.002 VIN=3.6V EN=0V TA =25oC 0.001 0 2.5 2.7 3.6 4.2 4.5 5 60 VIN =EN=3.6V VOUT=1.5V ILOAD=0mA -40 -25 0 25 50 75 100 VIN (V) Temperature (oC) RDSON vs Input Voltage EN Threshold-Turn On vs. Temp EN Threshold-Turn On (V) RDSO N (Ω) 70 125 1.6 MAIN SWITCH 0.38 0.36 0.34 SYNCHRONOUS SWITCH 0.32 VOUT=1.5V TA =25oC 2 2.5 3 3.5 4 4.5 1.2 1 0.8 0.6 0.4 V IN =3.6V V OUT=1.5V ILOAD =0mA 0.2 -40 -25 0 25 50 75 100 Input Voltage (V) Temperature (oC) VOUT vs. Temperature EN Threshold-Turn Off vs. Temp 125 1.6 EN Threshold-Turn Off (V) 1.52 1.5 1.48 1.46 1.44 V IN =EN=3.6V V OUT=1.5V ILOAD=100mA 1.42 1.4 -50 1.4 0 -50 5 1.54 VOUT (V) 80 40 -50 5.5 0.40 -40 -25 0 25 50 o Temperature ( C) 8 90 50 0.42 0.30 100 75 100 125 1.4 1.2 1.0 0.8 0.6 0.4 VIN=3.6V VOUT=1.5V ILOAD=0mA 0.2 0.0 -50 -40 -25 0 25 50 75 100 125 Temperature (oC) Rev. A.03 AME, Inc. 600mA / 1.2MHz PWM Buck DC-DC Converter AME5110 EN Leakage Current vs. Temp EN Leakage Current (µA) 0.025 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 20mV/div AC Coupled Vout IL V IN=3.6V V OUT =1.5V ILOAD=50mA TA=25oC Rev. A.03 100mV/div 1µS/DIV 9 AME, Inc. 600mA / 1.2MHz PWM Buck DC-DC Converter AME5110 n Date Code Rule Marking Date Code Year A A A W W xxx0 A A A W W xxx1 A A A W W xxx2 A A A W W xxx3 A A A W W xxx4 A A A W W xxx5 A A A W W xxx6 A A A W W xxx7 A A A W W xxx8 A A A W W xxx9 n Tape and Reel Dimension SOT-25 P W AME AME PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size 10 Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size SOT-25 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm Rev. A.03 AME, Inc. 600mA / 1.2MHz PWM Buck DC-DC Converter AME5110 n Tape and Reel Dimension TSOT-25 P W AME AME PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Rev. A.03 Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size TSOT-25 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm 11 AME, Inc. 600mA / 1.2MHz PWM Buck DC-DC Converter AME5110 n Package Dimension SOT-25 Top View Side View SYMBOLS D MILLIMETERS MAX MIN MAX L MIN INCHES 1.20REF E H A θ1 S1 e A1 0.00 0.15 0.0000 0.0059 b 0.30 0.55 0.0118 0.0217 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 1.90 BSC e H 2.60 θ1 0 3.00 o 10 0.10236 0.11811 0.0146BSC o 0o 10o 0.95BSC 0.0374BSC MILLIMETERS INCHES S1 A1 A 0.07480 BSC 0.37BSC L Front View 0.0472REF b TSOT-25 Top View Side View SYMBOLS MIN MAX MIN MAX A+A1 0.90 1.25 0.0354 0.0492 b 0.30 0.50 0.0118 0.0197 c 0.09 0.25 0.0035 0.0098 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 E H L D θ1 S1 e 1.90 BSC e H 2.40 b 12 S1 0 o 10 0.95BSC 0.09449 0.11811 0.0138BSC o 0o 10o 0.0374BSC A1 A θ1 3.00 0.35BSC L Front View 0.07480 BSC Rev. A.03 www.ame.com.tw E-Mail: [email protected] 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. AME, Inc. , October 2006 Document: 2073-DS5110-A.04 Corporate Headquarter U.S.A. (Subsidiary) AME, Inc. Analog Microelectronics, Inc. 2F, 302 Rui-Guang Road, Nei-Hu District Taipei 114, Taiwan. Tel: 886 2 2627-8687 Fax: 886 2 2659-2989 3100 De La Cruz Blvd., Suite 201 Santa Clara, CA. 95054-2438 Tel : (408) 988-2388 Fax: (408) 988-2489