STLED524 datasheet(12/72 Pages) STMICROELECTRONICS

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Electrical characteristics

STLED524

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DocID026217 Rev 1

Electrical characteristics

- 30 °C < TA < 85 °C, VIN = 2.7 V; VOUT = 4.0 V; typical values are at TA = 25 °C, unless

otherwise specified.

Table 6. Electrical characteristics

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

General section

VIN

Operating power input voltage

range

2.7

3.7

5.5

VIO

Supply voltage of I/O pins

1.8

3.6

VDD

Digital supply voltage(1)

3.1

ISHDN

Shutdown mode

µA

VUVLO

Undervoltage lockout threshold

(when reset is high)

VUVLOR (VIN rising)

2.5

2.6

VUVLOF (VIN falling)

2.3

2.4

Boost

fSW

Switching frequency

2.16

2.4

2.64

MHz

IOUT

Continuous output current

VIN = 3.5 V

480

VOUT

Boost output voltage

VIN = 3.0 V

2.8

4.6

IPK

Inductor peak current

1.5

Boost efficiency

(VIN = 3.7 V; VOUT = 4.0 V)

IOUT = 350 mA (PS mode)

VOVP

Overvoltage protection

5.8

VOVPHYST

Overvoltage protection

hysteresis

200

VBSTOKHYST

Hysteresis of BST_OK

comparator

250

LDO

VSUP

LDO output voltage

VIN = 3.3 V

3.1

ΔVSUP

LDO output accuracy

VIN = 3.3 V IOUT = 1 mA

ILDO

LDO output current

VIN = 3.3 V

100

LDO quiescent current

VIN = 3.3 V IOUT = 80 mA

1.4

µA

Thermal protection

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