L99VR02XP datasheet(21/50 Pages) STMICROELECTRONICS

Part #	L99VR02XP

Description	Dual automotive linear voltage regulator with configurable output voltage (2x250 mA current capability)

PDF	50 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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21 / 50 page

Test circuit and waveforms plot

3.1

Load regulation

Figure 34. Load regulation test circuit

VS_LDO1

En_LDO1

Ishort_LDO1

RES_LDO2

SEL1_LDO1

OUT_LDO1

Vcw_LDO1

Wi_LDO1

GND

SEL2_LDO1

TW_LDO2

SEL3_LDO1

RES_LDO1

En_LDO2

OUT_LDO2

SEL1_LDO2

SEL2_LDO2

SEL3_LDO2

Ishort_LDO2

TW_LDO1

TC_CONF

VS_LDO2

VCR_LDO1

VCR_LDO2

Vcw_LDO2

Rsh_LDO2

Rsh_LDO1

Wi_LDO2

Ctr1

Ctr2

Ctw1

Ctw2

Co2

Rrst2

Rrst1

3.3 µF

Vbat

ESR

LOAD

Figure 35. Maximum load variation response (5 V)

-0.70

-0.55

-0.40

-0.25

-0.10

0.05

0.20

4.9

5.0

5.1

5.2

0.00

0.01

0.02

0.03

0.04

0.05

Time (s)

Vout (5V)

Iout (A)

Figure 36. Maximum load variation response (3.3 V)

-0.70

-0.55

-0.40

-0.25

-0.10

0.05

0.20

3.2

3.25

3.3

3.35

3.4

3.45

0.00

0.01

0.02

0.03

0.04

0.05

Time (s)

Vout (3.3V)

Iout (A)

L99VR02XP

Test circuit and waveforms plot

DS14686 - Rev 1

page 21/50

L99VR02XP Datasheet(PDF) 21 Page - STMicroelectronics

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