XC6371A351PR Torex Semiconductor, XC6371A351PR Datasheet

XC6371A351PR

Manufacturer Part Number

XC6371A351PR

Description

Manufacturer

Torex Semiconductor

Datasheets

1.XC6371A351PR.pdf (19 pages)

2.XC6371A351PR.pdf (18 pages)

Specifications of XC6371A351PR

Date_code

04+

Packing_info

SOT-89

Current page: 1 of 19
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XC6371/XC6372/XC6373

PWM Controlled Step - Up DC/DC Contorollers/Convereters

■GENERAL DESCRIPTION

The XC6371/6372/6373 series are a group of PWM controlled and PWM/PFM controlled step-up DC/DC converters. The

built-in 1.4Ω switching transistor type enables a step-up circuit to be configured using only three components, a coil, a diode,

and a capacitor.

Output voltage can be selectable in the range from 2.0V to 7.0V in increments of 100mV (accuracy:±2.5%). Oscillation

frequency is also selectable from 50kHz, 100kHz, and 180kHz (accuracy:±15%) for the XC6371 and the XC6372 series.

Soft-start time is internally set and offers protection against in-rush currents when the power is switched on and prevents

voltage overshoot.

consumption during shut-down mode, or a V

The XC6371 series is the standard PWM controlled products. The control of the XC6372 series switches from PWM to PFM

control during light loads when automatically switching is selected and the series is highly efficient from light loads to large

output currents. Since the XC6373 series is a low noise, it is suitable for a wireless circuit. Also the series is particularly

suited for use with pager applications because oscillation frequency is set at 30kHz (±20%) so as to attain the lowest

consumption current possible.

■APPLICATIONS

●Cellular phones, Pagers

●Palmtops

●Cameras, Video recorders

●Portable products

■TYPICAL APPLICATION CIRCUIT

5 pin packages, which are provided with either a CE (chip enable) function that reduces power

pin (separated power and voltage detect pins) are available.

■FEATURES

Operation Start Voltage Range : 0.9V~10V

Output Voltage Range

Highly Accurate

Oscillation Frequency

Maximum Output Currents (Tr. built-in)

Highly Efficient (Tr. built-in)

Built-in switching transistor type.

Five-lead packaged units offer either chip enable or

independent V

Phase compensation and soft start-up circuits built-in.

CMOS Low Power Consumption

Small Packages

*: Performance depends on external components and

■TYPICAL PERFORMANCE

Series

PCB layout.

CHARACTERISTICS

OUT

pin option.

: 2.0V~7.0V in 100mV increments

: Setting voltage accuracy±2.5%

: 50kHz, 100kHz, 180kHz (±15%)

: 100mA(TYP.) @ V

: 85%(TYP.) @ V

: SOT-89, SOT-89-5,USP-6B

selectable (XC6371/72)

30kHz (XC6373)

☆GO-Compatible

=3.0V, V

ETR0402_002

OUT

=5.0V *

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