AS1324 查看數據表（PDF） - austriamicrosystems AG

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AS1324

1.5MHz, 600mA Synchronous DC/DC Converter

austriamicrosystems AG 

AS1324

Data Sheet - Electrical Characteristics

6 Electrical Characteristics

VIN = EN = 3.6V, VOUT < VIN - 0.5V, TAMB = -40 to +85°C, typ. values @ TAMB = +25ºC (unless otherwise specified).

Table 4. Electrical Characteristics

Symbol

Parameter

Conditions

Min Typ Max Units

VIN

Input Voltage Range

2.7

5.5

V

IQ

Quiescent Current

ISHDN

Shutdown Current

Regulation

Powersave Mode; VFB = 0.62V or VOUT =

103%, IOUT = 0mA, TAMB = +25ºC

Shutdown Mode; VEN = 0V, TAMB = +25ºC

30

35

µA

0.1

1

Regulated Feedback

VFB

Voltage 1

AS1324, IOUT = 100mA

0.585 0.6 0.615 V

ΔVFB

Reference Voltage

Line Regulation

VIN = 2.7V to 5.5V

0.1

1

%/V

IVFB

Feedback Current

TAMB = +25ºC

-30

30

nA

AS1324-AD, IOUT = 100mA2

VFB

VOUT

Regulated Output

Voltage

AS1324-12, IOUT = 100mA

AS1324-15, IOUT = 100mA

1.164 1.20 1.236

V

1.455 1.50 1.545

AS1324-18, IOUT = 100mA

1.746 1.80 1.854

ΔVOUT

Output Voltage

Line Regulation

VIN = 2.7 to 5.5V

0.1

1

%/V

VLOADREG

Output Voltage

Load Regulation

IOUT = 0 to 100mA

0.02

%/mA

DC-DC Switches

IPK

Peak Inductor Current

VIN = 3V, VFB = 0.5V or VOUT = 90%,

TAMB = 25ºC

0.5 0.75

1

A

RPFET P-Channel FET RDS(ON)

ILSW = 100mA

0.4

Ω

RNFET N-Channel FET RDS(ON)

ILSW = -100mA

0.35

Ω

ILSW

SW Leakage

Control Inputs

VEN = 0V, VSW = 0V or 5V

±0.01 ±1

µA

VEN

EN Threshold

0.3

1

1.5

V

IEN

EN Leakage Current

Oscillator

±0.01 ±1

µA

fOSC

Oscillator Frequency

VFB = 0.6V or VOUT = 100%

VFB = 0V or VOUT = 0V, TAMB = 25ºC

1.2

1.5

1.8 MHz

115

kHz

1. The device is tested in a proprietary test mode where VFB is connected to the output of the error amplifier.

2. Please see Feedback Resistor Selection on page 13 for resistor values.

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Revision 1.03

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