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AMC3100-1.5DBFT Datasheet(PDF) 1 Page - ADDtek Corp |
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AMC3100-1.5DBFT Datasheet(HTML) 1 Page - ADDtek Corp |
1 / 10 page www.addmtek.com Copyright © 2006 ADDtek Corp. 1 DD010_A -- JUNE 2006 AMC3100 1.5MHz, 600mA SYNCHRONOUS STEP-DOWN CONVERTER DESCRIPTION FEATURES High Efficiency: Up to 96% 600mA Output Current at VIN=3V 2.5V to 5.5V Input Voltage Range 1.5MHz Constant Switching Frequency No Schottky Diode Required 100% Duty Cycle as Low Dropout Operation 0.6V Reference Voltage Allows 0.6V Minimum Output Voltage <1µA Shutdown Mode Supply Current Current Mode Operation for Excellent Line and Load Transient Response Over-temperature Protected 4KV HBM ESD Protection 5-Pin Thin SOT-23 package APPLICATIONS The AMC3100 is a high efficiency synchronous buck DC/DC converter using a constant frequency, current mode architecture. Adjustable version and fixed output voltages of 1.2V, 1.5V and 1.8V are available. 300uA low supply current at no load and <1µA supply current at shutdown. The 2.5V to 5.5V input voltage range makes the AMC3100 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications. Switching frequency is internally set at 1.5MHz, allowing using small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. The AMC3100 is available in a low profile (1mm) Thin SOT-23-5L package. TYPICAL APPLICATION PDA, Personal Media Player Smart Phone Digital Still Camera, Video Camcorder Portable Instruments Bluetooth Headset PACKAGE PIN OUT AMC3100-1.8 RUN SW GND L VIN=2.5V to 5.5V VIN VOUT CIN 4.7uF VOUT=1.8V / 600mA COUT 10uF SYMBOLIZATION Device Name Output Voltage Marking AMC3100DBFT Adjustable A64A AMC3100-1.2DBFT 1.2V Fixed A642 AMC3100-1.5DBFT 1.5V Fixed A645 AMC3100-1.8DBFT 1.8V Fixed A648 TSOT-23-5L ( Top View ) SW RUN GND VFB / VOUT* 1 2 VIN 3 5 4 * Note: VFB pin for adjustable version. VOUT pin for fixed voltage version. ORDER INFORMATION SOT-23 DB 5-pin AMC3100DBF (Adjustable) AMC3100-X.XDBF (Fixed Voltage) Note: 1. All surface-mount packages are available in Tape & Reel. Append the letter “T” to part number (i.e. AMC3100-1.8DBFT). 2. The letter ”F” is marked for Lead Free process. |
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