BL2553

2

PIN CONFIGURATION

IN

OUT

2

1

3

5

6

4

GND

ILIM

nFAULT

EN

ABSOLUTE ＭAXIMUM RATINGS

(Note: Exceeding these limits may damage the device. Exposure to

absolute maximum rating conditions for long periods may affect device

reliability.)

IN to GND…..............................................–0.3V to 6V

OUT, ILIM, nFAULT, EN to GND…..–0.3V to VIN+0.3V

OUT to GND Current …………………..Internally limited

Maximum Power Dissipation………….…………...1.0W

Operating Temperature Range …….…. –40°C to 85°C

Storage Temperature Range….………–55°C to 150°C

ELECTRICAL CHARACTERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input Voltage Range

2.5

5.5

V

Input UVLO

Rising, Hysteresis=25mV

2.35

V

Input Supply Current

120

A

Input Shutdown Current

0.5

1.5

A

Power Switch On Resistance

95

m

145

m

Current limit Threshold

1.705

A

1.295

A

0.520

A

Response time to Short-circuit

1

S

Reverse-voltage Threshold

150

mV

Reverse Leakage Current

0.5

2

A

EN Input Logic High threshold

1

V

EN Input Logic Low threshold

0.66

V

nFAULT Output Low Voltage

70

170

mV

nFAULT Output Leakage

1

A

nFAULT Deglitch Time

De-assertion due to Over-current

9

mS

De-assertion due to Reverse-Voltage

4.5

Thermal Shutdown

160

Thermal Shutdown In Current

Limit

135

Thermal Shutdown Hysteresis

15