FS5502 datasheet(63/113 Pages) NXP

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NXP Semiconductors

FS5502

High voltage PMIC with multiple SMPS and LDO

aaa-031000

0.98

0.96

1.02

1.00

0.94

0.92

1.06

1.08

1.04

1.10

VOUT

(V)

0.90

time (ms)

20 µs / div

180

380

340

260

300

220

1.0

1.4

0.6

1.8

2.2

I(2-pos)

(A)

0.2

load step from 0.2 A to 2 A

2 A / µs

REF

min UV - 20 mV

max OV + 22 mV

1.0222327

42.92053 m

979.3122

Figure 16. Transient response simulation

15.4 BUCK1 electrical characteristics

TA = −40 °C to 125 °C, unless otherwise specified. VSUP = VSUP_UVH to 36 V, unless otherwise specified. All voltages referenced to ground.

Symbol

Parameter

Min

Typ

Max

Unit

VBUCK1_IN

Input voltage range

2.5

—

5.5

VBUCK1

Output voltage (OTP_VB1V[7:0])

0.8 V, 0.9 V, 0.95 V, 1.0 V, 1.025 V, 1.03125 V, 1.1 V, 1.2 V, 1.25 V,

1.3 V, 1.35 V, 1.4 V, 1.5 V, 1.8 V

0.8

—

1.8

IBUCK1

DC output current capability (one phase)

—

2.5

VBUCK1_ACC

Output voltage accuracy (IOUT < 2.5 A)

−2

—

VBUCK1_SW

Switching frequency range

2.1

2.22

2.35

MHz

LBUCK1

Inductor for VBUCK1_SW = 2.22 MHz (OTP_VB1INDOPT[1:0])

0.47

1.0

1.5

μH

Effective output capacitor

—

160

μF

COUT_BUCK1

Output decoupling capacitor

—

0.1

—

μF

Input capacitor (close to BUCK1_IN)

4.7

—

μF

CIN_BUCK1

Input decoupling capacitor (close to BUCK1_IN)

—

0.1

—

μF

VBUCK1_TLR

Transient load regulation for VBUCK1 < 1.2 V

(Cout = 44 μF, from 200 mA to 1.0 A, di/dt = 2.0 A/μs)

(Cout = 44 μF, from 400 mA to 2.0 A, di/dt = 4.0 A/μs)

−25

—

+25

Table 64. BUCK1 electrical characteristics

FS5502

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

Product data sheet

Rev. 4 — 27 October 2021

63 / 113

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