EUP3010A EUTECH [Eutech Microelectronics Inc], EUP3010A Datasheet

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EUP3010A

Manufacturer Part Number
EUP3010A
Description
1.5MHz,1A Synchronous Step-Down Converter with Soft Start
Manufacturer
EUTECH [Eutech Microelectronics Inc]
Datasheet
1.EUP3010A.pdf (12 pages)
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
DS3010/A Ver1.4 Feb. 2009
Step-Down Converter with Soft Start
Figure 1. Adjustable Output Regulators
1
1.5MHz,1A Synchronous
FEATURES
APPLICATIONS
High Efficiency up to 96%
1.5MHz Constant Switching Frequency
1A 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
Excellent Line and Load Transient Response
＜1µA Shutdown Current
Soft Start Function
Over Voltage Protection
Available in 1.2V,1.8V,3.3V Fixed Output or
Adjustable Output Versions
Available in 2mm
3mm TQFN-16L 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
×
2mm TDFN-6 and 3mm
EUP3010/A
×

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EUP3010A Summary of contents

Page 1

Step-Down Converter with Soft Start DESCRIPTION The EUP3010 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 ...

Page 2

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

Page 3

... EUP3010/A Pin Description EUP3010 EUP3010A PIN TDFN-6 TQFN- VIN 3 9, 10, 11 13, 14, 15 GND FB/VOUT 6 4 EUP3010/A Functional Block Diagram DS3010/A Ver1.4 Feb. 2009 DESCRIPTION No Internal Connect( Floating or Connecting to GND). Chip Enable Pin. Forcing this pin above 1.5V enables the part. Forcing this pin below 0 ...

Page 4

... Order Number Package Type EUP3010-12JIR1 TDFN-6 EUP3010-18JIR1 TDFN-6 EUP3010-33JIR1 TDFN-6 EUP3010JIR1 TDFN-6 EUP3010A-12JIR1 TQFN-16 EUP3010A-18JIR1 TQFN-16 EUP3010A-33JIR1 TQFN-16 EUP3010AJIR1 TQFN-16 EUP3010/A- □□ □ □ □ □ DS3010/A Ver1.4 Feb. 2009 Marking xxx g T xxx g D xxx g H xxx g A xxxxx 3010A 1T ...

Page 5

Absolute Maximum Ratings (1) Input Supply Voltage V EN, V Voltages FB P-Channel Switch Source Current (DC) ----------------------------------------------- 1.2A N-Channel Switch Sink Current (DC) ------------------------------------------------- 1.2A Peak SW Sink and Source Current -------------------------------------------------- Junction Temperature ------------------------------------------------------------------- 125°C Storage Temperature Lead ...

Page 6

Typical Operating Characteristics DS3010/A Ver1.4 Feb. 2009 EUP3010/A 6 ...

Page 7

DS3010/A Ver1.4 Feb. 2009 EUP3010/A 7 ...

Page 8

DS3010/A Ver1.4 Feb. 2009 EUP3010/A 8 ...

Page 9

Application Information Main Control Loop The EUP3010/A uses a slope-compensated constant frequency, current mode architecture. Both the main (P-Channel MOSFET) and synchronous (N-channel MOSFET) switches are internal. During normal operation, the EUP3010/A regulates output voltage by switching at a constant ...

Page 10

Thermal Considerations To avoid the EUP3010/A 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 ...

Page 11

Packaging Information SYMBOLS DS3010/A Ver1.4 Feb. 2009 TDFN-6 DETAIL A MILLIMETERS MIN. MAX. 0.70 0.80 0.00 0.05 0.20 0.40 1.90 2.10 1.40 1.90 2.10 0.80 0.65 0.25 0.45 11 EUP3010/A INCHES ...

Page 12

SYMBOLS DS3010/A Ver1.4 Feb. 2009 TQFN-16 MILLIMETERS MIN. MAX. 0.70 0.80 0.00 0.05 0.18 0.30 2.90 3.10 2.90 3.10 1.70 1.70 0.50 0.30 0.50 12 EUP3010/A INCHES MIN. MAX. 0.028 0.031 ...

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