XC6366C273MR Torex Semiconductor, XC6366C273MR Datasheet

XC6366C273MR

Manufacturer Part Number

XC6366C273MR

Description

Manufacturer

Torex Semiconductor

Datasheet

1.XC6366C273MR.pdf (21 pages)

Specifications of XC6366C273MR

Date_code

03+

Packing_info

SOT-153

Current page: 1 of 21
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PWM Controlled,PWM/PFM Switchable Step‐down DC/DC Converters

■General Description

■Typical Application Circuit

NInput Voltage Range

NOutput Voltage Range : 1.5~6.0V(±2.5%)

NOscillator Frequency : 300kHz(±15%)

NMaximum Duty Ratio : 100%

NHigh Efficiency

NPWM/PFM Switching Control (XC6366)

NSOT-25 Package

The XC6365/66 series are multi-functional step-down DC/DC converters

with built-in high speed, low ON resistance drivers. An output current of

more than 1A is possible using an externally connected transistor, coil,

diode and capacitor.

Output voltage is programmable in 0.1V steps between 1.5V to 6.0V

internal and using externally connected components, output voltage can

be set up freely (FB).

With a 300kHz switching frequency, the size of the external components

can be reduced.

Control switches from PWM to PFM during light loads with the XC6366

(PWM/PFM switchable) and the series is highly efficient from light loads

to large output currents.

In relation to soft-start time, both internally set-up 10msec types (A,B)

and external resistor or capacitor regulated types (C,D) are available.

During stand-by time (CE pin "Low" ), current consumption is reduced to

less than 0.5µA.

With U.V.L.O internal, the external Tr. will be forcibly switched off if used

below the stipulated voltage.

OUT

) (±2.5% accuracy). Further, with 1.0V of standard voltage supply

（Tantalum）

: 2.2~10.0V

: 92%

EXT/

GND

OUT

（Tantalum）

Series

OUT

■Applications

■Features

GElectronic Information Organizers

GPalmtops

GCellular and portable phones

GPortable Audio Systems

GVarious Multi-function Power Supplies

Input voltage range

Output voltage range : 1.5V~6.0V programmable in 0.1V steps

Oscillator frequency : 300kHz (±15%)

Output Current

High Efficiency

Stand-by capability

Soft-start time set-up externally type possible

Internally set-up output voltage type possible (V

Externally set-up outut voltage type possible (FB)

Package

■Typical Performance

Characteristic

100

0.1

XC6366A333MR (300kHz,3.3V)

: 2.2V~10V (V

: Custom products for 180, 500kHz

: 1.0A + (V

: 92% (typ.)

: I

: SOT-25

(±2.5%)

STB

=3.96V

Output Current:I

=0.5µA (max.)

L=22μH(CR54),C

=5.0V, V

SD:MA737，Tr:XP162A01B5P

OUT

type)

OUT

=47μF(Tantalum)

=3.0V)

100

(mA)

OUT

10V

)

1000

555

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