APW7077 데이터 시트보기 (PDF) - Anpec Electronics

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APW7077

PWM Step-Up DC-DC Converter

Anpec Electronics 

APW7077/A

Electrical Characteristics

(for all values TA = 25°C, VOUT = 3.3V, unless otherwise noted)

Symbol

Parameter

Test Condition

Step-Up Section

VIN

Minimum Operating Input

Voltage

VOUT = VDD

VDD Operating Voltage

VIN = VDD

Start-up Voltage

Io<10mA, VOUT = VDD (<5.5V)

VOUT = 12V, Io<10mA, VDD = VIN

fSW Operating Frequency

Oscillator Frequency Line

Regulation

VDD = 3.3V, VFB = 0.5V

2.0V<VDD<5.5V

DMAX Maximum Duty Cycle

VFB = 0.5V

Maximum Duty Line Regulation 2.0V<VDD<5.5V

Power MOSFET

ISOURCE EXT Output Source Current

ISINK EXT Output Sink Current

Control Section

Duty≤5%, EXT = VDD-0.4V

Duty≤5%, EXT = 0.4V

Output Voltage Range

External Divider

VFB Feedback Voltage

Feedback Voltage Line

Regulation

IFB Feedback Input Current

TSS Soft-start Time

Soft-start Threshold Voltage

ILOAD = 0mA

2.0V<VDD<5.5V

VFB = 1.4V

Duty = 50%

Soft-start Hysteresis Voltage

Iq Operating Current

IOFF Stand-by Current

Switch-off Current

VCE Logic LOW (VIL)

Logic HIGH(VIH)

ICE CE Pin Input Current

VDD = VCE = 3.3V, VFB = 0.5V

VDD = VCE = 3.3V, VFB = 1.1V

VDD = VCE = 3.3V, VFB = 1.3V

VDD = 3.3V, VCE = 0V

VCE = 0V

VCE = 3.3V

APW7077A

Min Typ Max

0.9

1.9

5.5

0.9 1

1.9 2.0

270 300 330

±1.2

81 88 95

±0.5

-70 -110 -150

80 120 160

2.0

0.98 1 1.02

±0.1

0.03 50

10 25 40

1.65

150

150 230

100 150

17 25

1

2

0.7

1.2

1

2

0.07 50

Unit

V

V

V

V

KHZ

%

%

%

mA

mA

V

V

%

nA

ms

V

mV

µA

µA

µA

µA

V

V

µA

nA

Copyright © ANPEC Electronics Corp.

4

Rev. A.4 - Sep, 2005

www.anpec.com.tw

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