Datasheet > XC9302312MR

XC9302312MR

更新时间： 2024-11-05 23:32:27

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其他 - ETC		模拟IC
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Analog IC

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数据手册

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XC9302312MR 数据手册

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XC9301/9302 Series

PWM, PWM/PFM Switching

DETAILS

Step-Up & Down DC/DC Controller

General Description

Features

The XC9301/02 s e rie s a re s te p -up /d own DC/DC c onve rte r

c ontrolle r ICs with fa s t, low ON re s is ta nc e d rive rs b uilt-in. A

ve rs a tile, la rge outp ut c urre nt, s te p -up /d own DC/DC c on-

ve rte r c a n b e re a lis e d us ing only 4 b a s ic e xte rna l c om p one nts

- tra ns is tors, c oils, d iod e s a nd c a p a c itors.

Outp ut volta ge is s e le c ta b le in 0.1V s te p s within a 2.4V ~ 6.0V

( ± 2.5% a c c ura cy) ra nge a nd switching fre q ue ncy is s e t a t

180kHz.

Input Voltage Range: 2.0V ~ 10V

Output Voltage Range: 2.4V ~ 6.0V ( ± 2.5% a c c ura cy)

(s e le c ta b le in 0.1V s te p s )

Oscillation Frequency: 180KHz ( ± 15% a c c ura cy)

Output Current: m ore tha n 250m A (VIN=2.4V, VOUT=3.3V)

Efficiency: 81% (typ ) a t 5.0V

78% (typ ) a t 3.3V

Stand-By: ISTB = 0.5µA (m a x)

Output Voltage Internal Set-Up

SOT-25 Package

The XC9302 s e rie s switc he s from P WM to P FM control d uring

light loa d s a nd the s e rie s offe rs high e ffic ie nc ie s from light

load s through to large outp ut curre nts.

S oft-s ta rt tim e is inte rna lly s e t to 10 m s e c which offe rs p ro-

te c tion a ga ins t rus h c urre nts whe n the p owe r is switc he d on

a nd a ls o a ga ins t volta ge ove rs hoot.

During s hutd own (CE p in = L), c ons um p tion c urre nt c a n b e

re d uc e d to a s little a s 0.5µA or le s s.

Pin Configuration

Pin Assignment

P IN

FUNCTION

NUMBER NAME

GND

VDD

Ground

Powe r S up p ly

EXT/

VOUT

Exte rna lTra ns is tor Conne c tion

Outp ut Volta ge Monitor

Chip Ena b le

S OT-25

(TOP VIEW)

Block Diagram

VOUT

VDD

Phase

Compensation

Error Am p.

EXT/

Buffe r,

Drive r

P WM

Com p a ra tor

GND

Ra m p Wave

Ge ne rator,

OS C

Vref with

Soft Start,

PWM/PFM

Controler

Ordering Information

XC9301①②③④⑤⑥

FUNCTION

A：S ta nd a rd (5-p in)

Outp ut Volta ge : 2.4 ~ 6.0

FUNCTION

①

②

③

Pa cka ge

⑤

⑥

M：S OT-25 (1re e l = 3000p c s )

e.g. 3.0V = ② → 3, ③ → 0

Em b os s e d Ta p e

Os c illa tor fre q ue ncy

2：180kHz

R：s ta nd a rd loa d ing

L：reve rs e loa d ing

④

* XC9302 S e rie s P WM/P FM switching c ontrol (s a m e a s XC9301 s e rie s )

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