STOD2540 datasheet(6/20 Pages) STMICROELECTRONICS

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Electrical characteristics

STOD2540

6/20

Doc ID 12204 Rev 10

Electrical characteristics

TJ = 40 °C to 85 °C, VI = 3.6 V, VEN = 3V, CI = CO = 4.7 µF, L = 4.7 µH, R1 = 180 kΩ,

R2 = 10 kΩ, VO = 24 V, Typ. values @ 25 °C, unless otherwise specified.

Table 5.

Electrical characteristics

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Input voltage range

3.0

5.5

Regulated output voltage

VI = 3 V to 5.5 V

VI + 0.5

VOVP

Over voltage protection on

output

Continuous output current

VO = 25 V

140

ISD

Stand-by current

VEN = Low, VI = 3.6 V

µA

VEN = Low, VI = 3 V to 4.2 V

Quiescent current consumption

VI = 3 V to 4.2 V @ 25 °C

0.4

0.8

VI = 5.5 V @ 25 °C

0.8

1.2

RDSON-SW

Boost switch RDSON

(1)

VI = 4.2 V, ISW = 100 mA

0.4

BVDS Breakdown voltage

RDSON-LDS

RDSON

(1)

VO = 25 V, IO = 30 mA

BVDS Breakdown voltage

ILIM-ADJ

Peak inductor limit range (1)

RSET = 10 kΩ to 100 kΩ

0.2

1.1

ILIM-MAX

Maximum peak inductor current

(1)

VI = 3 V to 5.5 V, RSET = VI

0.75

1.2

Feedback voltage

5% @ 25 °C

1.18

1.24

1.30

TON_MAX

Maximum ON time

VI = 4.2 V

5.5

µs

TOFF_MIN

Minimum OFF time

VI = 4.2 V

300

Eff

Efficiency, VI = 3.6 V

(1)

IO = 1 mA to 5 mA

IO = 5 mA to 40 mA

Efficiency, VI = 4.2 V

(1)

IO = 1 mA to 5 mA

IO = 5 mA to 40 mA

Ripple

Output ripple and noise

VI = 3.6 V, IO = 5 mA, VO = 24 V

1.3

VI = 3.6 V, IO = 30 mA, VO = 24 V

1.3

VI = 4.2 V, IO = 5 mA, VO = 24 V

1.3

VI = 4.2 V, IO = 30 mA, VO = 24 V

1.3

OVHYST

Over-voltage hysteresis

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