EA6305UC

EA6305UC Datasheet

Part	Datasheet
EA6305UC	EA6305UC (pdf)

Related Parts	Information
ACT6305UC-T	ACT6305UC-T

PDF Datasheet Preview
ACT6305 Low Input High Efficiency Synchronous Step-Up DC/DC Converter • 1V Typical Startup Voltage • Up to 94% Efficiency • Fully Integrated Power Stage • Fixed 3.3V/5V or Adjustable Output Voltage • NanoStandbyTM Shutdown Mode • Tiny SOT23-5 Package − RoHS Compliant Package • Hand-Held Devices • One to Three Cell Battery Operated Devices • PDAs • Cellular Phones • Digital Cameras • GPS The ACT6305 is a high efficiency synchronous step-up DC/DC converter that consumes just 17µA of quiescent supply current and is capable of delivering more than 400mA output current using only three external components. This device achieves a typical startup voltage of just 1V, making it ideal for applications operating from 1 or 2 alkaline cells. This device incorporates an internal synchronous rectifier, and achieves excellent peak efficiency of up to 94% and features a proprietary control scheme that ensures high efficiency over a wide load current range. The ACT6305 features pin-selectable output voltages of 3.3V or 5V, or it can also be set externally to any voltage between 2V and 5V. The ACT6305 is available in a tiny SOT23-5 package. TYPICAL APPLICATION CIRCUIT Efficiency % 100 90 80 70 60 50 40 30 Efficiency vs. Output Current VIN = 5V VIN = 2.4V VIN = 3.5V VIN = 1.2V VOUT = 5V 1000 Output Current mA ACT6305-001 Pb-free Innovative PowerTM Copyright 2012 Active-Semi, Inc. ORDERING INFORMATION PART NUMBER TEMPERATURE RANGE PACKAGE PINS PACKING METHOD TOP MARK ACT6305UC-T -40°C to 85°C SOT23-5 TAPE & REEL HBCA All Active-Semi components are RoHS Compliant and with Pb-free plating unless specified differently. The term “Pb-free” means semiconductor products that are in compliance with current RoHS Restriction of Hazardous Substances standards. PIN CONFIGURATION 5 OUT ACT6305 SOT23-5 PIN DESCRIPTIONS PIN NUMBER PIN NAME PIN DESCRIPTION Output Voltage Selection and Feedback Input. Connect this pin to G for VOUT = 5V, to OUT for VOUT = 3.3V. Connect FB to a resistor divider to set the output voltage be- tween 2V and 5V. See the Output Voltage Selection section for more information. Ground. Shutdown Input. Drive EN to OUT or to a logic high for normal operation, drive EN to G or to a logic low to disable the regulator. Inductor Connection. Output. ACT6305 regulates voltage at this pin. OUT also provides power to the IC. Innovative PowerTM Copyright 2012 Active-Semi, Inc. ABSOLUTE MAXIMUM RATINGSc PARAMETER VALUE UNIT OUT, EN to G FB, LX to G Continuous LX Current to VOUT + Internally Limited Maximum Power Dissipation derate 5mV/°C above TA = 50°C Junction to Ambient Thermal Resistance Operating Junction Temperature 190 -40 to 150 W °C/W Storage Temperature -55 to 150 Lead Temperature Soldering, 10 sec c Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may affect device reliability. ELECTRICAL CHARACTERISTICS VIN = 1.5V, VOUT = 3.3V, TA = 25°C, unless otherwise specified.

PDF Datasheet Preview

ACT6305

Low Input High Efficiency Synchronous Step-Up DC/DC Converter
• 1V Typical Startup Voltage
• Up to 94% Efficiency
• Fully Integrated Power Stage
• Fixed 3.3V/5V or Adjustable Output Voltage
• NanoStandbyTM Shutdown Mode
• Tiny SOT23-5 Package
− RoHS Compliant Package
• Hand-Held Devices
• One to Three Cell Battery Operated Devices
• PDAs
• Cellular Phones
• Digital Cameras
• GPS

The ACT6305 is a high efficiency synchronous step-up DC/DC converter that consumes just 17µA of quiescent supply current and is capable of delivering more than 400mA output current using only three external components. This device achieves a typical startup voltage of just 1V, making it ideal for applications operating from 1 or 2 alkaline cells.

This device incorporates an internal synchronous rectifier, and achieves excellent peak efficiency of up to 94% and features a proprietary control scheme that ensures high efficiency over a wide load current range.

The ACT6305 features pin-selectable output voltages of 3.3V or 5V, or it can also be set externally to any voltage between 2V and 5V. The ACT6305 is available in a tiny SOT23-5 package.

TYPICAL APPLICATION CIRCUIT

Efficiency %
100 90 80 70 60 50 40 30

Efficiency vs. Output Current

VIN = 5V

VIN = 2.4V

VIN = 3.5V

VIN = 1.2V

VOUT = 5V
1000

Output Current mA

ACT6305-001

Pb-free

Innovative PowerTM

Copyright 2012 Active-Semi, Inc.
ORDERING INFORMATION

PART NUMBER TEMPERATURE RANGE PACKAGE PINS PACKING METHOD TOP MARK

ACT6305UC-T
-40°C to 85°C

SOT23-5

TAPE & REEL

HBCA

All Active-Semi components are RoHS Compliant and with Pb-free plating unless specified differently. The term “Pb-free” means semiconductor products that are in compliance with current RoHS Restriction of Hazardous Substances standards.

PIN CONFIGURATION
5 OUT

ACT6305

SOT23-5

PIN DESCRIPTIONS

PIN NUMBER PIN NAME

PIN DESCRIPTION

Output Voltage Selection and Feedback Input. Connect this pin to G for VOUT = 5V, to

OUT for VOUT = 3.3V. Connect FB to a resistor divider to set the output voltage be-
tween 2V and 5V. See the Output Voltage Selection section for more information.

Ground.

Shutdown Input. Drive EN to OUT or to a logic high for normal operation, drive EN to G or to a logic low to disable the regulator.

Inductor Connection.

Output. ACT6305 regulates voltage at this pin. OUT also provides power to the IC.

Innovative PowerTM

Copyright 2012 Active-Semi, Inc.

ABSOLUTE MAXIMUM RATINGSc

PARAMETER

VALUE

UNIT

OUT, EN to G

FB, LX to G Continuous LX Current
to VOUT +

Internally Limited

Maximum Power Dissipation derate 5mV/°C above TA = 50°C Junction to Ambient Thermal Resistance Operating Junction Temperature
190 -40 to 150

W °C/W

Storage Temperature
-55 to 150

Lead Temperature Soldering, 10 sec
c Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

VIN = 1.5V, VOUT = 3.3V, TA = 25°C, unless otherwise specified.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived EA6305UC Datasheet file may be downloaded here without warranties.

Datasheet ID: EA6305UC 522501