APW7093NI-TU Просмотр технического описания (PDF) - Anpec Electronics

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APW7093NI-TU

3A, 1MHz, Step Down DC/DC Regulator

Anpec Electronics 

APW7093

Electrical Characteristics

(VIN=VCC=3.3V, VEXTREF=+1.1V, TA=-45 to +85oC, unless otherwise noted, Typical values are at TA =+25oC.)

Symbol

Parameter

Test Conditions

APW7093

Unit

Min Typ Max

VIN, VCC Input Voltage

3.0

5.5 V

Feedback Voltage Accuracy

(VFB –VEXTREF)

VIN=VCC=+3.0V to +5.5V,

ILOAD=0,VEXTREF=1.25V (Note2)

-12

+12 mV

∆VFB Feedback Load Regulation Error ILOAD=-3A to +3A, VEXTREF=+1.25V

20

mV

VEXTREF External Reference Voltage Range VIN=VCC=+3.0 to +5.5V

- VREF

0.01

VIN -

V

1.7

VREF Reference Voltage

1.07 1.10 1.12

802

V

Reference Load Regulation

IREF= -1µA to +10µA

0.3 2 mV

RPMOS PMOS Switch On-Resistance

RNMOS NMOS Switch On-Resistance

ILX=0.5A

ILX=0.5A

VIN=+4.5V

VIN=+3.0V

VIN=+4.5V

VIN=+3.0V

70 140

mΩ

90 180

50 100

mΩ

60 120

ILIMIT Current Limit Threshold

VIN > VLX

3.5 4.1 4.7 A

fSW

ICC

IIN

I SHDN

Switching Frequency

No Load Supply Current

Shutdown Supply Current

Thermal Shutdown Threshold

(Note3)

fSW =500kHz

fSW =500kHz

SHDN = GND, ICC+ IIN

Hysteresis =15°C

1 MHz

1

mA

32

<1 15 µA

150

°C

UVLO Under Voltage Lockout Threshold

IFB FB Input Current

TOFF Off-Time

Startup Off-Time

TON On-Time

ISS SS Source Current

ISS SS Sink Current

SHDN Input Current

VIL

SHDN Logic Levels

VIH

IOUT(RMS) Maximum Output RMS Current

VCC falling, hysteresis = 90mV

VFB=VEXTREF+0.1V

RTOFF=30.1kΩ

RTOFF=110kΩ

RTOFF=499kΩ

(Note3)

VSS=1V

VSHDN =0, VCC

2.5 2.6 2.7 V

0 60 250 nA

0.40 0.44 0.48

1.10 1.20 1.30 µs

4.3 4.8 5.3

4×TOFF

µs

0.34

µs

4 5 6 µA

2

mA

-1

+1 µA

0.8

V

2.0

3.1 ARMS

Copyright © ANPEC Electronics Corp.

4

Rev. A.5 - Jun., 2005

www.anpec.com.tw

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