MFS5600AMBA0ES datasheet(9/111 Pages) NXP

9 / 111 page

NXP Semiconductors

FS5600

Automotive buck regulator and controller with voltage monitors and watchdog timer

Rating

Board Type

Symbol

Value

Unit

Junction to Ambient Thermal Resistance[1]

Customized, 2s6p

RθJA

29.4

°C/W

Junction-to-Top of Package Thermal Characterization

Parameter[1]

Customized, 2s6p

ΨJT

4.4

°C/W

Table 6. QFN32 thermal resistance and package dissipation ratings...continued

[1]

Determined in accordance to JEDEC JESD51-2A natural convection environment. Thermal resistance data in this report is solely for a thermal

performance comparison of one package to another in a standardized specified environment. It is not meant to predict the performance of a package in

an application-specific environment. Normal practice assumes uniform heating on the die. When higher power density occurs in localized areas, there are

significant hot spots on the die.

10 Device Level Electrical Parameters

All parameters are specified at TA = –40 °C to 125 °C, VIN = 14 V, ENx = 12 V,

VCC = 5.0 V, No Load on regulators, Fsw = 450 kHz, typical external component values,

unless otherwise noted. Typical values are specified at 25 °C, unless otherwise noted.

Parameter

Symbol Min

Typ

Max

Unit

VIN Rising Threshold

(minimum VIN for FS5600 to turn on)

VIN_r

—

5.7

VIN and SW1/2IN recommended operating voltage (after crossing

VIN_r).

BIAS_IN = 5 V powers VCC

VIN

2.7

—

VIN and SW1/2IN recommended operating voltage (after crossing

VIN_r).

BIAS_IN = 0 V. [1]

VIN

4.4

—

Quiescent Current (non-switching), SW1 & SW2 in PFM.

BIAS_IN connected to 5 V. ULPM Mode.

Current measured at VIN

Current measured at BIAS_IN

Iq1

—

140

—

µA

Quiescent Current (non-switching), SW1 in PFM. SW2 disabled.

BIAS_IN connected to 5 V. ULPM Mode.

Current measured at VIN

Current measured at BIAS_IN

Iq2

—

12.5

105

—

µA

Quiescent Current (non-switching), SW2 in PFM. SW1 disabled.

BIAS_IN connected to 5 V. ULPM Mode.

Current measured at VIN

Current measured at BIAS_IN

Iq3

—

100

—

µA

Shutdown Mode quiescent current

Iq4

—

7.5

—

µA

Table 7. Device level electrical parameters

[1]

In the absence of BIAS_IN, VIN falling below this voltage will cause FS5600 to power off.

FS5600

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

Product data sheet

Rev. 3 — 2 August 2022

9 / 111

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