RY8310

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30V 1.2A 1.4MHz Synchronous Step-Down Regulator

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Specifications

Absolute Maximum Ratings (1) (2)

Item

Min

Max

Unit

VIN voltage

-0.3

32

V

EN voltage

-0.3

32

V

SW voltage

-0.3

VIN+0.5V

V

BS voltage

-0.3

Vsw+5V

V

FB voltage

–0.3

6

V

Power dissipation (3)

Internally Limited

Operating junction temperature, TJ

-40

150

°C

Storage temperature, Tstg

–55

150

°C

Lead Temperature (Soldering, 10sec.)

260

°C

Note (1): Exceeding these ratings may damage the device.

Note (2): The device is not guaranteed to function outside of its operating conditions.

Note (3): The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(MAX),

the junction-to-ambient thermal resistance, RθJA, and the ambient temperature, TA. The maximum allowable power

dissipation at any ambient temperature is calculated using: PD (MAX) = (TJ(MAX) − TA)/RθJA. Exceeding the maximum

allowable power dissipation causes excessive die temperature, and the regulator goes into thermal shutdown.

Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages at

TJ=160°C (typical) and disengages at TJ= 130°C (typical).

ESD Ratings

Item

Description

Value

Unit

V(ESD-HBM)

Human Body Model (HBM)

ANSI/ESDA/JEDEC JS-001-2014

Classification, Class: 2

±2000

V

V(ESD-CDM)

Charged Device Mode (CDM)

ANSI/ESDA/JEDEC JS-002-2014

Classification, Class: C0b

±200

V

ILATCH-UP

JEDEC STANDARD NO.78E APRIL 2016

Temperature Classification,

Class: I

±150

mA

Recommended Operating Conditions

Item

Min

Max

Unit

Operating junction temperature (1)

–40

125

°C

Operating temperature range

-40

85

°C

Input voltage VIN

4.5

30

V

Output current

0

1.2

A

Note (1): All limits specified at room temperature (TA = 25°C) unless otherwise specified. All room temperature

limits are 100% production tested. All limits at temperature extremes are ensured through correlation using standard