STW4510 datasheet(41/57 Pages) STMICROELECTRONICS

Teilenummer	STW4510

Bauteilbeschribung	2 step-down DC/DC converters / 5 LDO power management

PDF	57 Pages

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Hersteller	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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41 / 57 page

Obsolete

Product(s)

- Obsolete

Product(s)

STw4510

Electrical and timing characteristics

41/57

Vana(i) regulator in sleep mode (pdn_vana1 = 1, SLEEP =’1’)

VBAT

Input power supply

Vana1 =

1.5 V/1.8 V/2.5 V

2.7

3.6

5.5

Vana1 = 2.8 V

3.6

5.5

VOUT

Output Voltage

Vana1_sel[1:0] pads

-3 %

1.5

1.8

2.5

2.8

+3 %

IOUT

Output current

500

µA

I(2)Q

Quiescent current

IOUT = 0 mA

µA

PSRR((1)

Power supply rejection

Vana1 = 2.8 V

IOUT = 0.5 mA

Vpp = 0.3 V,

F: [0; 20] kHz

Lir

Line regulation

VBAT: [2.7; 5.5] V

Ldr

Load regulation

IOUT: [0.1; 0.5] mA

Lirt

Transient line regulation

Vana1 = 2.8 V

IOUT = 0.5 mA

VBAT:[3; 3.3] V

tR = tF = 10 µs

2mV

Ldrt

Transient load regulation

Vana1 = 2.8 V

IOUT= [0.1; 0.5] mA

tR = tF = 1 µs

Guaranteed by design

Quiescent current defined is the current measured on the power supply voltage dedicated to the Vana(i) with only one

Vana(i) on at the same time

Table 20.

LDO regulators - Vana 1

Symbol

Description

Test conditions

Min.

Typ.

Max.

Units

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