ADP3031 데이터 시트보기 (PDF) - Analog Devices

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ADP3031

2 MHz PWM Boost Switching Regulator

Analog Devices 

PRELIMINARY TECHNICAL DATA

ADP3031–SPECIFICATIONS1

(VIN = +3.3 V, TA = –40°C to 85°C, unless otherwise noted)

Parameter

Symbol

Conditions

Min Typ Max Units

SUPPLY

Input Voltage

Quiescent Current

Switching State3

Non-switching State

Shutdown

ERROR AMPLIFIER

Feedback Voltage

Line Regulation

Bias Current

Overall Regulation

Transconductance

Gain

SWITCH

On Resistance

Output Load Current2

Leakage Current

Efficiency2

Efficiency2

Peak Current Limit

Output Voltage Range

OSCILLATOR

Oscillator Frequency

Maximum Duty Cycle

SHUTDOWN

Shutdown Input Voltage Low

Shutdown Input Voltage High

VIN

IQSW

IQ

ISD

VFB

gm

AV

RON

ILOAD

ICLSET

VOUT

FOSC

DMAX

2.5

5.5 V

f = 600 kHz, light load

2

5

mA

300 500 µA

1

µA

VIN = 2.5 V to 5.5 V

Line, Load, Temp

TBD

–0.1

–3

1.233

100

100

1000

TBD

+0.1

3

V

%/V

nA

%

µA/V

V/V

at ISW=1.5 A, VIN = 3.3 V

200 300 mΩ

continuous operation

200 300

mA

VIN = 3.3 V,VOUT =10 V

VSWITCH = 12 V

5

µA

ILOAD = 200 mA,

85

%

VOUT = 10 V, f = 600 kHz

ILOAD = 100 mA,

90

%

VOUT = 10 V, f = 600 kHz

1.5 1.8

A

3

7

12

V

RT = Open

0.5 0.6 0.7 MHz

RT = GND

1.7 2

2.3 MHz

COMP = open, FB = 1 V

80

85

%

0.8 V

2.2

V

UNDER-VOLTAGE LOCKOUT

UVLO Threshold

UVLO Hysteresis

2.2 2.45 2.5 V

100

mV

NOTES

1 All limits at temperature extremes are guaranteed via correlation and characterization using standard Statistical Quality Control (SQC).

2 See Figure xx.

3 This is the average current while switching.

Specifications subject to change without notice.

–2–

REV. PrB

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