AS1324 datasheet(4/21 Pages) AMSCO

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AS1324

Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s

6 Electrical Characteristics

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

Note:

All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality

Control) methods.

Table 4. Electrical Characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VIN

Input Voltage Range

2.7

5.5

Quiescent Current

Powersave Mode; VFB = 0.62V or VOUT = 103%,

IOUT = 0mA, TAMB = +25ºC

µA

ISHDN

Shutdown Current

Shutdown Mode; VEN = 0V, TAMB = +25ºC

0.1

Regulation

VFB

Regulated Feedback Voltage

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

AS1324, IOUT = 100mA

0.585

0.6

0.615

∆VFB

Reference Voltage

Line Regulation

VIN = 2.7V to 5.5V

0.1

%/V

IVFB

Feedback Current

TAMB = +25ºC

-30

VOUT

Regulated Output Voltage

AS1324-AD, IOUT = 100mA

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

VFB

AS1324-12, IOUT = 100mA

1.164

1.20

1.236

AS1324-15, IOUT = 100mA

1.455

1.50

1.545

AS1324-18, IOUT = 100mA

1.746

1.80

1.854

∆VOUT

Output Voltage

Line Regulation

VIN = 2.7 to 5.5V

0.1

%/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

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

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

±0.01

±1

µA

Control Inputs

VEN

EN Threshold

0.3

1.5

IEN

EN Leakage Current

±0.01

±1

µA

Oscillator

fOSC

Oscillator Frequency

VFB = 0.6V or VOUT = 100%

1.2

1.5

1.8

MHz

VFB = 0V or VOUT = 0V, TAMB = 25ºC

115

kHz

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