AMS6104 AMS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 6

Technical content

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 44 3-0722 Fax (925) 443-0723 Advanced AMS6104 Monolithic 1A SWITCH BOOST CONVERTER Systems RoHS compliant FEATURES APPLICATIONS

  • • •• Internal Power Switch •• •• Handheld Computers, PDA’s
  • • •• Output Voltage up to 20V •• •• Cell Phones
  • • •• Up to 89% Efficiency •• •• Digital Still and Video Games
  • • •• Low 0.08µA Shutdown Supply Current •• •• Small LCD Displays
  • • •• Internal Current Limit
  • • •• Thermal Shutdown
  • • •• Available in 5-Pin SOT-23 Package GENERAL DESCRIPTION The AMS6104 is an adjustable step-up DC/DC converte r with a 1Amp internal switch. The low quiescent cu rrent of typical 300µA, makes AMS6104 attractive for battery operate d applications. AMS6104 operates at switching frequ encies of 500 kHz allowing for easy filtering and low noise. The refe rence voltage is set at 1.23V. Internally compensat ed and internal soft-start minimizes the number of external components necessa ry. It operates from 1.3V to 15V supply and it is t hermally and over current protected. The AMS6104 is available in SOT2 3-5 leads package. ORDERING INFORMATION PIN CONNECTIONS TYPICAL APPLICATION 5L SOT-23 (M1) Top View OUTPUT PACKAGE TYPE TEMP. VOLTAGE 5 Lead SOT-23 RANGE Adjustable AMS6104M1 -25°C to 125°C

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 44 3-0722 Fax (925) 443-0723 AMS6104 PIN DESCRIPTION AMS6104 PIN NUMBERS NAME DESCRIPTION 1 FB Feedback Input. Connect a resistive voltage divider from the output voltage to FB to set the output voltage. The feedback regulation threshold is 1.23V.

2 GND Ground

3 SW High side of the Switch transistor. The Low side of the Switch transistor is internally connected to GND 4 VCC Internal Power Input. VCC powers the internal circuitry. If the input source remains above 3.0V, VCC can be connected to the input source to reduce power consumption. 5 EN Enable. A high voltage at EN turns on the converter, and a low voltage turns it off. When not used, connect EN to the input source for automatic startup. If EN is driven over 6V, place a 10 k Ω to 47kΩ resistor in series with EN. 3.3V to 5.0V application

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 44 3-0722 Fax (925) 443-0723 AMS6104 ABSOLUTE MAXIMUM RATINGS VCC -0.3V to 15V Operating Temperature -20ºC to +105ºC SW -0.5V to 20V Junction Temperature 150ºC All other pins -0.3V to 6V Solder Temperature 230º C VCC Supply Voltage 1.3V to 15V Storage Temperature -65ºC to 150 ºC Output Voltage VIN to 20V Thermal Resistance 410ºC /W

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at TA= 25 °C, VCC = V EN = 3.3V (unless otherwise noted) PARAMETER TEST CONDITIONS AMS6104 Min. Typ. Max. Units START-UP Operating Input Voltage 1.5 15 V Minimum Start-up Voltage IOUT =25mA 1.3 1.5 V ENABLE EN Threshold V EN Rising 1.1 1.2 2.0 V EN Hysteresis 40 mV EN Input Bias Current VEN = 1.5V 5 8 µ A EN Input Bias Current VEN = 3.3V 15 20 µA FEEDBACK COMPARATOR FB voltage 1.19 1.23 1.27 V FB Input Bias Current V FB = 1.23V -15 -10 nA OUTPUT SWITCH SW On-Saturation voltage V CC = 5.0V 330 500 mV SW Current Limit 0.9 1 1.5 A SW Leakage Current V SW = 20V 10 µA Output Switch Rise Time (inductor controlled) 20 ns Output Switch Fall Time 8 ns Switching Frequency 424 475 525 Khz Maximum duty cycle 95 % DEVICE Efficiency V OUT = 5.0V; I OUT =1mA to 500mA 85 % Supply Current (Shutdown) V EN = 0V, no F/B resistors 80 150 nA Supply Current (Quiescent) V FB = 1.3V; IOUT =0mA 480 600 µA Load Regulation V OUT = 5.0V; I OUT =1mA to 500mA 16 25 mV Line Regulation I OUT =10mA ; V CC = 3.3V to 12V 10 20 mV Thermal Shutdown I SW =1A 130 ºC

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 44 3-0722 Fax (925) 443-0723 AMS6104 TYPICAL PERFORMANCE CHARACTERISTICS Efficiency VS Load for 5V output application achieving 0.5A 3.3V Input, 5V Output; norm alized Load Regulation Efficiency VS Supply for 12V Output at 100mA load Light Load Line regulation (reverse load regulation) for 12V Output Load Transient 25-75% load 12V Output Normal Switching Waveform 3.3 to 5V efficiency 0.8 0.81 0.82 0.83 0.84 0.85 0.86 0.87 0.88 0.89 0.9 Load Regulation 0.98 0.985 0.99 0.995 1.005 1.01 Efficiency Vs Supply for 100mA load 100 0 2 4 6 8 10 12 14 Line regualtion @10mA 0.996 0.998 1.002 1.004 1.006 1.008 1.01 0 2 4 6 8 10 12 14

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 44 3-0722 Fax (925) 443-0723 AMS6104 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Waveform close-up showing Rise time Waveform close-up showing Fall time Full load (200mA) start-up - Minimal load (1mA) start-up – 22µF Tantalum Capacitor 22µF Tantalum Capacitor 1mA load start-up – Full load (200mA) start-up

3 X 1µF Ceramic output capacitor 3 X 1µ F Ceramic output capacitor

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 44 3-0722 Fax (925) 443-0723 AMS6104 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.

5 LEAD SOT-23 PLASTIC PACKAGE (M1

0.059-0.070 (1.50-1.75) 0.014-0.020 (0.350-0.50) 0.110-0.120 (2.794-3.048) 0.102-0.118 (2.60-3.00) 0.037 (0.95) TYP 0.075 (1.90) TYP 0.018-0.024 (0.457-0.610) 10° NOM 0.0035-0.0080 (0.090-0.20) (SOT-23-5 ) AMS DRW# 051001 0.036-0.051 (0.090-1.30) 0.003 (0.150) MAX 0.018-0.024 (0.457-0.610) 10° NOM