DIO6905B datasheet(4/15 Pages) DIOO

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DIO6905B

www.dioo.com

DIO6905B • Rev. 1.2

- 4 -

Electrical Characteristics

VIN = 3.6 V, TJ = 25°C, unless otherwise specified.

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

VFB

Feedback voltage

2.3 V ≤ VIN ≤ 5.5 V, TJ = 25°C

594

600

606

TJ = -40°C to 125°C

588

612

IFB

Feedback current

VFB = 0.63 V

100

RDSON_P

P-FET switch on resistance

120

mΩ

RDSON_N

N-FET switch on resistance

mΩ

P-FET peak current limit

Sourcing

2.4

N-FET valley current limit

Sourcing, valley current limit

1.6

tON

On time

VIN = 5 V, VOUT = 1.2 V

133

VIN = 3.6 V, VOUT = 1.2 V

185

Switching frequency

VIN = 5 V, VOUT = 1.2 V,

IOUT = 500 mA, TJ = 25°C (1)

1400

1800

2200

kHz

VIN = 5 V, VOUT = 1.2 V ,

IOUT = 500 mA,

TJ = -40°C to 125°C (1)

1400

1800

2200

kHz

tMIN-OFF

Minimum off time

tMIN-ON(1)

Minimum on time

tSS-ON

Soft-start time

VOUT rise from 10% to 90%

0.6

Undervoltage lockout threshold rising

2.1

2.3

Undervoltage lockout threshold hysteresis

EN input logic low voltage

0.4

EN input logic high voltage

1.2

RDIS

Output discharge resistor

VEN = 0 V, VOUT = 1.2 V

kΩ

EN input current

VEN = 2 V

μA

VEN = 0 V

μA

Supply current (shutdown)

VEN = 0 V, TJ = 25°C

0.1

μA

Supply current (quiescent)

VEN = 2 V, VFB = 0.63 V,

VIN = 3.6 V, 5 V, TJ = 25°C

μA

Thermal shutdown(2)

160

°C

Thermal hysteresis(2)

°C

Note:

(1). Guaranteed by characterization.

(2). Guaranteed by design.

(3). Specification subject to change without notice

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