1/26

36V Operation 600mA Synchronous Step-Down DC/DC Converters

Lx

PG

FB

GND

EN/SS

C

IN

L

2.2μF

10μF

ETR05075-003

■FEATURES

Input Voltage Range

:

3.0 ~ 36V (Absolute Max 40V)

Output Voltage Range

:

1.0 ~ 25V

FB Voltage

:

0.75V ± 1.5%

Oscillation Frequency

:

2.2MHz

Output Current

:

600mA

Quiescent Current

:

13.5μA (XD9268)

Control Methods

:

PWM control(XD9267)

:

PWM/PFM Auto(XD9268)

:

Efficiency 88%@12V→5V,300mA

Soft-start Time

:

Adjustable by RC

Protection functions

:

Over Current Protection

(Automatic Recovery)

Thermal Shutdown

Output Capacitor

:

Ceramic Capacitor

Operating Ambient Temperature

:

- 40℃ ~ + 105℃

Packages

:

SOT-89-5 (Without Power Good)

:

USP-6C (With Power Good)

Environmentally Friendly

:

EU RoHS Compliant, Pb Free

■GENERAL DESCRIPTION

The XC9268 series are 36V operation synchronous step-down DC/DC converter ICs with a built-in P-channel MOS driver transistor

and N-channel MOS switching transistor. The XD9267 / XD9268 series has an operating voltage range of 3 V to 36 V, a switching

frequency of 2.2 MHz, and the circuit scheme of synchronous rectification to be a highly efficient and stable power supply. An internal

The soft-start time is internally set to 2.0ms (TYP.), but can be adjusted to set a longer time using an external resistor and capacitor.

With the built-in UVLO function, the driver transistor is forced OFF when input voltage becomes 2.7V or lower.

The output state can be monitored using the power good function.

Over-current protection and thermal shutdown are built in as protection function, and it can be used safely even in the case of short

circuit. Internal protection circuits include over current protection and thermal shutdown circuits to enable safe use.

■APPLICATIONS

●Automotive Body Control

●Automotive Infotainment

●Automotive accessories

・Drive recorder

・Car-mounted camera

・ETC

●Industrial Equipment

■TYPICAL APPLICATION CIRCUIT

■TYPICAL PERFORMANCE

CHARACTERISTICS

☆AEC-Q100 Grade2