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AS1340

Datasheet - Electrical Character i s t ics

6 Electrical Characteristics

VCC = EN = 2.7V, TAMB = -40 to +85ºC (unless otherwise specified). Typical values are at TAMB = +25ºC.

Note:

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

Control) methods.

Table 3. Electrical Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

TAMB

Operating Temperature Range

-40

+85

°C

VCC

Supply Voltage

2.7

5.5

V

VIN

Inductor Input Voltage Range

2.7

50

V

VOUT

Output Voltage Range

2.7

50

V

ICC

Quiescent Supply Current

VFB = 1.3V, VIN = 5V

30

50

µA

Enable Supply Current

EN = GND

0.1

1

µA

VLNR

VCC Line Regulation

VOUT = 18V, ILOAD = 1mA, VIN = 5.5V,

VCC = 2.7 to 5.5V

0.3

%/V

VIN Line Regulation

VOUT = 18V, ILOAD = 1mA,

VCC = 5V, VIN = 2.7 to 5.5V

0.25

%/V

VLDR

Load Regulation

VOUT = 18V, VCC = VIN = 5V, ILOAD = 0 to

20mA

0.02

%/mA



Efficiency

L1 = 10µH, VIN = 5.5V, VOUT = 20V, ILOAD =

100mA

88

%

VFB

Feedback Set Point

1.225

1.25

1.275

V

IFB

Feedback Input Bias Current

VFB = 1.3V

5

100

nA

DC-DC Switches

VOUT max

VIN = 5.5V, ILOAD = 0mA

50

V

ILX(MAX)

LX Switch Current Limit

VIN = 5.5V, ILOAD > 20mA

1.41

A

RLX

LX On-Resistance

VCC = 5.5V, ILX = 100mA

0.6



RP_ON

Switch On-Resistance

VIN = 5.5V, PMOS

0.2

ILX_LEAK

LX Leakage Current

VLX = 50V

2

µA

IP_LEAK

Switch Leakage Current

VIN = 5.5V, PMOS

0.5

Control Inputs

VIH

EN Input Threshold

2.7V

VCC  5.5V

0.8 x

VCC

V

VIL

0.2 x

VCC

IEN

EN Input Bias Current

VCC = 5.5V, VEN = 0 to 5.5V

-1

+1

µA

POK Output

VOL

POK Output Low Voltage

POK sinking 1mA

0.01

0.2

V

POK Output High Leakage Current

POK = 5.5V

100

500

nA

POK Threshold

Rising edge, referenced to VOUT(NOM)

87

90

93

%

Oscillator

fCLK

Oscillator Frequency

0.85

1

1.15

MHz

Maximum Duty Cycle

85

90

95

%