VR5510 datasheet(42/203 Pages) NXP

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NXP Semiconductors

VR5510

Multi-output PMIC with SMPS and LDO

Symbol

Parameter

Min

Typ

Max

Unit

BUCK3

VBUCK3_IN

Input voltage range

2.5

—

5.5

VBUCK3

Output voltage, OTP settings available:

1.0 V, 1.1 V, 1.2 V, 1.25 V, 1.3 V, 1.35 V, 1.5 V, 1.6 V, 1.8 V

1.85 V, 2.0 V, 2.1 V, 2.15 V, 2.25 V, 2.3 V, 2.4 V, 2.5 V, 2.8 V,

3.15 V, 3.2 V, 3.25 V, 3.3 V, 3.35 V, 3.4 V, 3.5 V, 3.8 V, 4.0 V,

4.1 V

1.0

—

4.1

IBUCK3

Recommended DC output current capability

—

2.5

—

Output Voltage Accuracy, PWM

-2

—

Output Voltage Accuracy, PWM, 1.1 V setting

-1

—

VBUCK3ACC

Output Voltage Accuracy, PFM

-3

—

IBUCK3_Q

Quiescent Current, PFM Mode, VSUP = 12 V

—

μA

VBUCK3_SW

Switching Frequency Range

2.1

2.22

2.35

MHz

LBUCK3

Inductor for VBUCK3_SW =2.22 MHz

—

1.0

—

μH

Effective output capacitor

—

132

μF

COUT_BUCK3

Output decoupling capacitor

—

0.1

—

μF

Effective input capacitor (close to BUCK3_IN pin)

4.23

—

μF

CIN_BUCK3

Input decoupling capacitor (close to BUCK3_IN pin)

—

0.1

—

μF

VBUCK3_TLR

Transient Load Regulation

(Cout = 44 μF, from 200 mA to 1 A, di/dt = 2 A/μs)

-50

—

2.4

3.7

ILIM_BUCK3

Inductor peak current limitation range

(OTP configuration)

3.6

4.5

5.45

TBUCK3_ON_MIN

HS minimum ON time

DVS Ramp up/down Speed , BUCK3_RAMP_OTP[1:0] = 00

10.42 15

mV/μs

DVS Ramp up/down Speed , BUCK3_RAMP_OTP[1:0] = 01

3.47

mV/μs

DVS Ramp up/down Speed , BUCK3_RAMP_OTP[1:0] = 10

1.5

2.6

3.5

mV/μs

VBUCK3_DVS_UP_DOWN

DVS Ramp up/down Speed , BUCK3_RAMP_OTP[1:0] = 11

2.08

mV/μs

VBUCK3_SOFT_START

Soft start (from 10% to 90%)

—

200

μs

RBUCK3_HS_RON

HS PMOS RDSon

—

135

mΩ

RBUCK3_LS_RON

LS NMOS RDSon

—

mΩ

RdischBUCK3

Discharge Resistance (when BUCK3 is disabled)

—

Ω

TSDBUCK3

Thermal shutdown threshold

155

—

°C

TBUCK3_TSD

Thermal shutdown filtering time

—

μs

Table 19. Electrical characteristics

13.5 BUCK3 efficiency

Table 20 shows BUCK3 efficiency versus current load based on a typical external component and a 4.1 V

VPRE voltage. For external components with characteristics different from the ones shown below, use the

VR5510

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 6 — 31 July 2023

42 / 203

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