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Eutech Microelectronics

EUP3010 Datasheet Preview

EUP3010 Datasheet

1A Synchronous Step-Down Converter

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EUP3010/A
1.5MHz,1A Synchronous
Step-Down Converter with Soft Start
DESCRIPTION
The EUP3010/A is a constant frequency, current mode,
PWM step-down converter. The device integrates a
main switch and a synchronous rectifier for high
efficiency. The 2.5V to 5.5V input voltage range makes
the EUP3010/A ideal for powering portable equipment
that runs from a single cell Lithium-Ion (Li+) battery or
3-cell NiMH/ NiCd batteries. The output voltage can be
regulated as low as 0.6V. The EUP3010/A supports up
to 1A load current and can also run at 100% duty cycle
for low dropout applications, extending battery life in
portable systems.
Switching frequency is internally set at 1.5MHz,
allowing the use of small surface mount inductors and
capacitors. The internal synchronous switch increases
efficiency while eliminates the need for an external
Schottky diode. The EUP3010/A is available in an
adjustable output or fixed output 1.2V ,1.8V and 3.3V.
Typical Application Circuit
FEATURES
z High Efficiency up to 96%
z 1.5MHz Constant Switching Frequency
z 1A Available Load Current
z 270µA Typical Quiescent Current
z 2.5V to 5.5V Input Voltage Range
z Adjustable Output Voltage as Low as 0.6V
z 100% Duty Cycle Low Dropout Operation
z No Schottky Diode Required
z Short Circuit and Thermal Protection
z Excellent Line and Load Transient Response
z 1µA Shutdown Current
z Soft Start Function
z Over Voltage Protection
z Available in 1.2V,1.8V,3.3V Fixed Output or
Adjustable Output Versions
z Available in 2mm× 2mm TDFN-6 and 3mm×
3mm TQFN-16L Package
z RoHS Compliant and 100% Lead(Pb)-Free
APPLICATIONS
z Cellular and Smart Phones
z Portable Media Players/ MP3 Players
z Digital Still and Video Cameras
z Portable Instruments
z WLAN PC Cards
DS3010/A Ver1.4 Feb. 2009
Figure 1. Adjustable Output Regulators
1




Eutech Microelectronics

EUP3010 Datasheet Preview

EUP3010 Datasheet

1A Synchronous Step-Down Converter

No Preview Available !

Typical Application Circuit (continued)
EUP3010/A
Figure 2. Fixed Output Regulators
Pin Configurations
Package
Type
Pin Configurations
Package
Type
Pin Configurations
EUP3010
TDFN-6
ADJ Voltage
EUP3010
TDFN-6
Fixed Voltage
EUP3010A
TQFN-16
ADJ Voltage
EUP3010A
TQFN-16
Fixed Voltage
DS3010/A Ver1.4 Feb. 2009
2


Part Number EUP3010
Description 1A Synchronous Step-Down Converter
Maker Eutech Microelectronics
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