STBB3J datasheet(8/25 Pages) STMICROELECTRONICS

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Electrical characteristics

STBB3J

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DocID025263 Rev 5

Electrical characteristics

VIN = VINA = VEN = 3.6 V, VOUT = 3.3 V, CIN = 4x10 μF, COUT = 4 x 10 μF, CINA = 100 nF,

L = 1.5

μH, TA = - 40 °C to 85 °C (unless otherwise specified; typical values are referred to

TA = 25 °C).

Table 6. Electrical characteristics

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

General section

VIN

Input voltage range

1.8

5.5

Minimum input voltage for the

startup

IOUT = 600 mA, mode = VIN

1.8

1.9

VUVLO

Undervoltage lockout threshold

VINA rising, IOUT = 100 mA

MODE = VIN;

1.5

1.6

1.7

VINA falling; IOUT = 100 mA

VMODE = VIN;

1.4

1.5

1.6

Quiescent current VIN and VINA

IOUT = 0 A VMODE = GND

µA

ISHDN

Shutdown current

VEN = GND

0.1

µA

VFB

Feedback voltage

VIN from 1.8 to 5.5 V

490

500

510

fSW

Switching frequency

TA = 25 °C

1.8

2.2

MHz

Frequency range for external

synchronization

1.6

2.4

IOUT

Continuous output current (1)

VIN from 1.8 to 5.5 V

600

ISWL

Switch current limitation

TA = 25 °C

2.8

3.65

IPK

Switch current limitation

2.3

2.5

2.7

IPS-PWM

PS to PWM transition

730

PWM to PS transition

680

Output voltage

VOUT

Output voltage range

1.2

5.5

ΔOUT Maximum load regulation

VIN = 2.5 to 5.5 V, VMODE = VIN

-1.5

+1.5

VIN = 2.5 to 5.5 V, VMODE = GND

suitable output current to keep

PS operation

-3

%VOUT

Maximum load regulation

ILOAD = from 10 mA to 800 mA

± 0.5

VOPP-PS Peak-to-peak ripple in PS mode

IOUT = 100 mA

100

ILKFB

FB pin leakage current

VFB = 5.5 V

µA

Control stage

VIL

Low-level input voltage (EN,

MODE pins)

0.4

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