AME7720

AME, Inc. AME7720 / 7721 n General Description The AME7720 / 7721 is switched-capactitor voltage doublers that delivers a regulated output. No external inductor is required for operation. Using three small capacitors, the AME7720 / 7721 can deliver up to 60mA to the voltage regulated output. The AME7720 / 7721 features very low output pipple and high efficiency over a large portion of its load range making this device ideal for battery-powered applications. Furthermore, the combination of few external components and small package size keeps the total converter board area to a minimum in space restricted applications. The AME7720 / 7721 contains a thermal management circuit to protect the device under continuous output short circuit conditions. The AME7720 / 7721 is available in SOT-25 / SOT-26 package and is rated from -40OC to 85OC. Step-Up/Step-Down 60mA Regulated Charge Pump n Applications l Cellular Phone l Digital Camera l PDAs LCD display l LED/Display Back Light Driver l Smart Card Reader l SIM Card Supply l PCMCIA Card l LCD Display n Functional Block Diagram AME7720 VIN φ2 CC+ φ1 n Features l Input Voltage Range: 5V Version: 2.7V to 5.5V 3.3V Version: 1.8V to 5.5V l Accurate to with ±5% l Output Current: 5V Version: 60mA with VIN>=3.0V 3.3V Version: 60mA with VIN >=2.2V l 1MHZ Switching Frequency l Shutdown Mode < 1µA (AME7720) l Short Circuit Protection:Typ. 80mA l Over Temperature Protection l All AME’ s Lead Free Product Meet RoHS Standards VIN EN φ1 φ2 VOUT φ1 φ2 EA Control GND AME7721 CC+ φ2 φ1 φ1 φ2 V OUT φ1 φ2 EA Control GND 1 AME, Inc. AME7720 / 7721 n Typical Application AME7720 5V / 60mA VOUT C OUT =2.2µF GND Step-Up/Step-Down 60mA Regulated Charge Pump C+ CPUMP = 0.22µF 3.0V to 5.5V VIN VIN VOUT AME 7720 C IN=2.2µF C- EN ON OFF AME7721 5V / 60mA VOUT C OUT =2.2µF GND C+ CPUMP = 0.22µF 3.0V to 5.5V VIN VIN VOUT AME 7721 CC IN=2.2µF 2 AME, Inc. AME7720 / 7721 n Pin Configuration SOT-26 Top View 6 5 4 Step-Up/Step-Down 60mA Regulated Charge Pump SOT-25 Top View AME7720BEEY 1. VOUT 2. GND 5 4 AME7721BEEV 1. VOUT 2. GND AME7720 3. C4. VIN 5. C+ AME7721 3. C4. VIN 5. C+ 1 2 3 6. EN * Die Attach: Conductive Epoxy 1 2 3 * Die Attach: Conductive Epoxy n Pin Description Pin Number AME7720 1 AME7721 1 VOUT Regulator output pin. VOUT should be bypassed with a 2.2µF low ESR ceramic capacitor. Ground pin connection. Pin Name Pin Description 2 2 GND 3 3 C- Pump capacitor negative terminal. Input supply pin. VIN should be bypassed with a 2.2µF low ESR ceramic capacitor. Pump capacitor positive terminal. Shutdown input. Active Low disable the regulator. 4 4 VIN 5 5 C+ 6 N/A EN 3 AME, Inc. AME7720 / 7721 n Ordering Information AME7720/7721 x x x x xxx x Special Feature Voltage Number of Pins Package Type Operating Ambient Temperature Range Pin Configuration Pin Configuration AME7720 Step-Up/Step-Down 60mA Regulated Charge Pump Operating Ambient Temperature Range E: -40OC to 85OC Package Type E: SOT-2X Number of Pins V: 5 Y: 6 Voltage 500: V=5V Special Feature Y: Lead free & Low profile Z: Lead free B (SOT-26) 1. VOUT 2. GND 3. C4. VIN 5. C+ 6. EN 1. VOUT 2. GND 3. C4. VIN 5. C+ AME7721 B (SOT-25) n Ordering Information Part Number AME7720BEEY500Z AME7720BEEY500Y AME7721BEEV500Z AME7721BEEV500Y Marking* BECww BECww BEGww BEGww Output Voltage 5V 5V 5V 5V Package SOT-26 TSOT-26 SOT-25 TSOT-25 Operating Ambient Temperature Range - 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 before Package Dimension. * A line on top of the first letter represents lead free plating such as BECww. Please consult AME sales office or authorized Rep./Distributor for the availability of package type. 4 AME, Inc. AME7720 / 7721 n Absolute Maximum Ratings Parameter Input Voltage ESD Classification Step-Up/Step-Down 60mA Regulated Charge Pump Maximum 5.5 C* Unit 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) Package SOT-26 SOT-25 SOT-26 SOT-25 SOT-26 Die Attach Conductive Epoxy Symbol θJC Maximum 81 Unit Conductive Epoxy o C/W Thermal Resistance (Junction to Ambient) Conductive Epoxy θJA Conductive Epoxy Conductive Epoxy PD 400 mW Conductive Epoxy 150 350 o 260 Internal Power Dissipation SOT-25 Maximum Junction Temperature Solder Iron (10Sec)** * Measure θJC on center of molding compound if IC has no tab. ** MIL-STD-202G 210F C 5 AME, Inc. AME7720 / 7721 n Electrical Specifications(AME7720) TA=-40OC to +85OC, VIN = VOUT/2+0.75V, IOUT = 5mA , CIN = COUT=2.2µF , CPUMP = 0.22 µF, V EN =1.3V Typical Values are at TA=25OC. Parameter Input Voltage Symbol VIN Test Conditions VOUT = 5V VOUT = 3.3V IOUT