XC9301302MR [TOREX]
Analog Circuit;
| 型号： | XC9301302MR |
| 厂家： | 
Torex Semiconductor |
| 描述： | Analog Circuit |
| 文件： | 总1页 (文件大小：23K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
_______________________________________________________________________________________________________________
●
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
P IN
5
4
3
FUNCTION
NUMBER NAME
1
2
GND
VDD
Ground
Powe r S up p ly
3
4
5
EXT/
VOUT
CE
Exte rna lTra ns is tor Conne c tion
Outp ut Volta ge Monitor
Chip Ena b le
1
2
S OT-25
<S OT-23-5>
(TOP VIEW)
Block Diagram
VOUT
VDD
Phase
Compensation
Error Am p.
+
EXT/
+
-
Buffe r,
Drive r
-
P WM
Com p a ra tor
GND
CE
Ra m p Wave
Ge ne rator,
OS C
Vref with
Soft Start,
CE
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 )
51
相关型号：
©2020 ICPDF网 联系我们和版权申明