eup3406 Eutech Microelectronics Inc, eup3406 Datasheet

no-image

eup3406

Manufacturer Part Number
eup3406
Description
1.5mhz, 600ma Synchronous Step-down Converter
Manufacturer
Eutech Microelectronics Inc
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
eup3406VIR1
Manufacturer:
EUTECH
Quantity:
20 000
DESCRIPTION
The EUP3406 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 EUP3406 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 EUP3406 supports up to
600mA 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 inductor and
capacitors. The internal synchronous switch increases
efficiency while eliminate the need for an external
Schottky diode. The EUP3406 is available in a low
profile 5 lead SOT package.
Typical Application Circuit
DS3406 Ver1.2 Nov. 2007
1.5MHz, 600mA Synchronous
Figure1.
1
FEATURES
APPLICATIONS
Step-Down Converter
High Efficiency
1.5MHz Constant Switching Frequency
600mA Available Load Current
270µA Typical Quiescent Current
2.5V to 5.5V Input Voltage Range
Adjustable Output Voltage as Low as 0.6V
100% Duty Cycle Low Dropout Operation
No Schottky Diode Required
Short Circuit and Thermal Protection
Over Voltage Protection
<1µA Shutdown Current
Available in SOT23-5 Package
RoHS Compliant and 100% Lead(Pb)-Free
Cellular and Smart Phones
Portable Media Players/ MP3 Players
Digital Still and Video Cameras
Portable Instruments
WLAN PC Cards
EUP3406

Related parts for eup3406

eup3406 Summary of contents

Page 1

... EUP3406 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 EUP3406 supports up to 600mA load current and can also run at 100% duty cycle for low dropout applications, extending battery life in portable systems ...

Page 2

... Do not leave EN floating. GND 2 Common ground Switch Node Connection to Inductor. This pin connects to the drains of the internal SW 3 main and synchronous power MOSFET switches Supply voltage pin Feedback pin FB DS3406 Ver1.2 Nov. 2007 Figure2. Pin Configurations DESCRIPTION 2 EUP3406 ...

Page 3

... SOT23-5 EUP3406 □ □ □ □ 1: Lead Free 0: Lead Packing R: Tape & Reel Operating temperature range I: Industry Standard Package Type V: SOT-23 DS3406 Ver1.2 Nov. 2007 Marking e A □ □ □ □ Lead Free Code 3 EUP3406 Operating Temperature range -40 °C to 85°C ...

Page 4

... R of P-Channel FET PFET DS(ON N-Channel FET NFET DS(ON Leakage Current LSW V EN Threshold Leakage Current EN Note 1: The EUP3406 is tested in a proprietary test mode that connects V DS3406 Ver1.2 Nov. 2007 ----------------------------------------------------------- -0. -------------------------------------------------------------- -0. ------------------------------------------ 800mA ------------------------------------------------------- -65°C to 150°C ------------------------------------------------------------------ =3.6V. IN Conditions V =0. =0V 4. ...

Page 5

... Typical Operating Characteristics DS3406 Ver1.2 Nov. 2007 5 EUP3406 ...

Page 6

... DS3406 Ver1.2 Nov. 2007 6 EUP3406 ...

Page 7

... DS3406 Ver1.2 Nov. 2007 7 EUP3406 ...

Page 8

... DS3406 Ver1.2 Nov. 2007 8 EUP3406 ...

Page 9

... MOSFET is a square wave of duty cycle V primary function of the input capacitor is to provide a low impedance loop for the edges of pulsed current drawn by the EUP3406. A low ESR input capacitor sized for the maximum RMS current must be used. The size required will vary depending on the load, output voltage and input voltage source impedance characteristics. A typical value is around 4.7µ ...

Page 10

... Thermal Considerations To avoid the EUP3406 from exceeding the maximum junction temperature, the user will need thermal analysis. The goal of the thermal analysis is to determine whether the operating conditions exceed the maximum junction temperature of the part. The temperature rise is given by: ...

Page 11

... Packaging Information SYMBOLS MIN DS3406 Ver1.2 Nov. 2007 SOT23-5 MILLIMETERS MAX. - 1.30 0.00 0.15 2.90 1.60 2.60 3.00 0.30 0.60 0.30 0.50 0.95 11 EUP3406 INCHES MIN. MAX. - 0.052 0.000 0.006 0.114 0.063 0.102 0.118 0.012 0.024 0.012 0.020 0.037 ...

Related keywords