Datasheet > AS1326_04

AS1326_04

更新时间： 2022-06-19 22:28:20

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艾迈斯 - AMSCO		转换器升压转换器
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19页	1787K
描述
High Current, 0.8A DC-DC Step-Up Converters

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AS1326_04 数据手册

AS1326

Datasheet - Electrical Characteristics

6 Electrical Characteristics

CLK/SEL = FB = PGND = GND, ISET = REF, OUT = POUT, VOUT = 3.6V, TAMB = -40 to +85ºC. Typical values are at

TAMB = +25ºC. Unless otherwise specified.

Table 4. Electrical Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

DC-DC Converter

Input Voltage Range ¹

VIN

0.7

0.9

5.0

1.1

Minimum Startup Voltage ²

VMINSU

ILOAD < 1mA, TAMB = +25ºC

Temperature Coefficient of

Startup Voltage

-1.6

mV/°C

fSU

Frequency in Startup Mode

Internal Oscillator Frequency

VOUT = 1.5V

125

0.8

500

1000

1.2

kHz

fSW

CLK/SEL = OUT

MHz

Oscillator Maximum

Duty Cycle ³

External Clock

fSWEXT

VOUT

0.5

1.2

MHz

Frequency Range

VFB < 0.1V, CLK/SEL = OUT, includes load

regulation for 0 < ILX < 0.55A

Output Voltage

3.17

3.3

3.38

Adjustable output, CLK/SEL = OUT,

VFB

IFB

FB Regulation Voltage

FB Input Leakage Current

Load Regulation

1.215 1.240 1.270

includes load regulation for 0 < ILX < 0.55A

VFB = 1.35V, TAMB = +25ºC

-100

0.01

-1

100

CLK/SEL = OUT, no load to full load,

0 < ILX < 1.0A

Output Voltage

Adjust Range

VOUTADJ

2.5

5.0

Output Voltage

Rising edge

2.00

-50

2.15

2.30

Lockout Threshold ⁴

ISET Input Leakage Current

Supply Current in Shutdown

VISET = 1.25V, TAMB = +25ºC

VON = 0V, VONN = 3.6V

0.01

0.1

µA

ISHDN

No-Load Supply Current ⁵

CLK/SEL = GND

CLK/SEL = OUT

100

µA

No-Load Supply Current ⁵,

Forced PWM Mode

DC-DC Switches

POUT Leakage Current

VLX = 0, VOUT = 5.5V, TAMB = +25ºC

0.1

µA

VLX = VOUT = 5.5V, in shutdown,

TAMB = +25ºC

LX Leakage Current

N-channel

P-channel

0.2

0.25

1.6

0.35

0.45

1.95

RON

Switch On-Resistance

N-Channel Current Limit

INMOS

1.25

References

VREF

Reference Output Voltage

IREF = 0

1.230 1.250 1.270

Reference Load Regulation

Reference Supply Rejection

-1µA < IREF < +50µA

2.5V < VOUT < 5V

0.2

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