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AS1321

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

Table 3. Electrical Characteristics

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Battery Input Range

1.5

5.0

V

Startup Battery Input Voltage

1

1. Guaranteed by design.

1.22

1.5

V

1.24

Output Voltage

2

2. Voltage which triggers next loading cycle. Ripple and rms value depend on external components.

4.950

5.000

5.050

V

4.875

5.125

N-Channel

On-Resistance

0.3

1.2

Ω

1.5

P-Channel On-Resistance

0.4

1.3

Ω

1.6

N-Channel Switch Current Limit

1

550

700

850

mA

450

950

Switch Maximum

On-Time

5

7

9

µs

4

10

Synchronous Rectifier

Zero-Crossing Current

8

30

60

mA

0

65

Quiescent Current into OUT

3

3. The Quiescent current is measured while the DC-DC Converter is not switching.

35

55

µA

60

Shutdown Current into OUT

0.01

1

µA

2

Quiescent Current into BATT

3

0.01

1

µA

2

Shutdown Current into BATT

0.01

1

µA

2

SHDNN Logic Low

1

0.3

V

SHDNN Threshold

1.185

1.228

1.271

V

1.170

1.286

SHDNN Threshold Hysteresis

0.02

V

RESETN Threshold

4.288

4.500

4.712

V

4.242

4.758

RESETN Voltage Low

0.15

V

0.2

RESETN Leakage Current

0.1

100

nA

1

LX Leakage Current

0.1

1000

nA

10

Maximum Load Current

130

mA

Efficiency

η

91

%