EEWORLDEEWORLDEEWORLD

Part Number

Search

XC9237E13CEL

Description
Switching Regulator/Controller
CategoryPower/power management    The power supply circuit   
File Size864KB,32 Pages
ManufacturerTOREX
Websitehttp://www.torex.co.jp/chinese/
Environmental Compliance
Download Datasheet Parametric View All

XC9237E13CEL Overview

Switching Regulator/Controller

XC9237E13CEL Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Objectid109128261
package instruction,
Reach Compliance Codecompliant
Country Of OriginJapan
ECCN codeEAR99
YTEOL2
Humidity sensitivity level1
Peak Reflow Temperature (Celsius)260
Maximum time at peak reflow temperature10
XC9235/XC9236/XC9237
Series
600mA Driver Tr. Built-In, Synchronous Step-Down DC/DC Converters
ETR0514-009
The XC9235/XC9236/XC9237 series is a group of synchronous-rectification type DC/DC converters with a built-in 0.42Ω
P-channel driver transistor and 0.52ΩN-channel switching transistor, designed to allow the use of ceramic capacitors. Operating
voltage range is from 2.0V to 6.0V (A∼C types), 1.8V to 6.0V (D∼G types). For the D/F types which have a reference voltage
of 0.8V (accuracy:
±2.0%),
the output voltage can be set from 0.9V by using two external resistors. The A/B/C/E/G types have
a fixed output voltage from 0.8V to 4.0V in increments of 0.05V (accuracy:
±2.0%).
The device provides a high efficiency, stable
power supply with an output current of 600mA to be configured using only a coil and two capacitors connected externally.
With the built-in oscillator, ether 1.2MHz or 3.0MHz can be selected for suiting to your particular application. As for operation
mode, the XC9235 series is PWM control, the XC9236 series is automatic PWM/PFM switching control and the XC9237 series
can be manually switched between the PWM control mode and the automatic PWM/PFM switching control mode, allowing fast
response, low ripple and high efficiency over the full range of loads (from light load to heavy load).
The soft start and current control functions are internally optimized. During stand-by, all circuits are shutdown to reduce current
consumption to as low as 1.0μA or less. The B/F/G types have a high speed soft-start as fast as 0.25ms in typical for quick
turn-on. With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel driver transistor is forced OFF when
input voltage becomes 1.4V or lower.
The B to G types integrate C
L
auto discharge function which enables the electric charge at the output capacitor C
L
to be
discharged via the internal auto-discharge switch located between the L
X
and V
SS
pins. When the devices enter stand-by mode,
output voltage quickly returns to the V
SS
level as a result of this function.
Two types of package SOT-25 (A/B/C types only) and USP-6C are available.
■GENERAL
DESCRIPTION
☆GreenOperation
Compatible
■APPLICATIONS
●Mobile
phones, Smart phones
●Bluetooth
headsets
●Mobile
WiMAX PDAs, MIDs, UMPCs
●Portable
game consoles
●Digital
cameras, Camcorders
●MP3
Players, Portable Media Players
●Notebook
computers
■FEATURES
P-ch Driver Transistor Built-In
N-ch Driver Transistor Built-In
Input Voltage
Output Voltage
High Efficiency
Output Current
Oscillation Frequency
Maximum Duty Cycle
Control Methods
: ON resistance 0.42Ω
: ON resistance 0.52Ω
: 2.0V ~ 6.0V (A/B/C types)
: 1.8V ~ 6.0V (D/E/F/G types)
: 0.8V ~ 4.0V
: 92% (TYP.)
: 600mA
: 1.2MHz, 3.0MHz (+15%)
: 100%
: PWM (XC9235)
PWM/PFM Auto (XC9236)
PWM/PFM Manual (XC9237)
■TYPICAL
APPLICATION CIRCUIT
●XC9235/XC9236/XC9237
A/B/C/E/G types (Output Voltage Fixed)
Soft-Start Circuit Built-In
Current Limiter Circuit Built-In (Constant Current & Latching)
Low ESR Ceramic Capacitor Compatible
Packages
: SOT-25 (A/B/C types only), USP-6C
C
L
High Speed Discharge
: B/C/D/E/F/G types
High Speed Soft Start
: B/F/G types
* Performance depends on external components and wiring on the PCB.
■TYPICAL
PERFORMANCE
CHARACTERISTICS
●Efficiency
vs. Output Current(f
OSC
=1.2MHz, V
OUT
=1.8V)
●XC9235/XC9236/XC9237
D/F types (Output Voltage Externally Set)
Efficiency: EFFI (%)
Efficency:EFFI(%)
100
90
80
70
60
50
40
30
20
10
0
PWM/PFM Automatic Sw itching Control
VIN= 4.2V
3.6V
2.4V
PWM Control
VIN= 4.2V
3.6V
2.4V
0.1
1
10
100
1000
Output Current:IOUT(mA)
1/32
TI's latest audio headphone switch device TS3A225E demo
TS3A225E is TI's latest audio switch device that can automatically detect whether an audio headset has an analog microphone and detect the corresponding pin configuration. The market is flooded with d...
qwqwqw2088 Analogue and Mixed Signal
"~/.bash_profile" setting problem.
"~/.bash_profile" "~/.bash_profile" [font=宋体]Write error[/font] ([font=宋体]File system full?[/font]) [font=宋体]Please press[/font] ENTER [font=宋体]or other commands to continue? ??? ??? ??? ??? ??? ??? ?...
zhiha258 Embedded System
Melexis High Reliability Programmable Hall Switch, you are invited to watch the live broadcast at 10:00 on May 21st
Melexis High Reliability Programmable Hall Switch, you are invited to watch the live broadcast at 10:00 on May 21stClick here to registerLive broadcast time: 10:00-11:30 am, May 21, 2020Live broadcast...
EEWORLD社区 Automotive Electronics
Discussion on high brightness, high display and high reliability solutions for high power products
[hide]1. High brightness product solution : 1) Use high brightness phosphor, such as Intenmax yellow powder YAG-04, red powder 05742 (choose large particle phosphor) 2) Use high refractive silver past...
探路者 LED Zone
Rewrite data in the nor flash that already has data
Write data again in the nor flash which already has data, and only write data in part of it. It would be best if you give an example!!!...
xuch37216471 Embedded System
Problems in building a WinCE card distribution environment
Dear experts, please help me! I used vc6.0 before, and I want to learn Wince recently. The first thing I did was to install IDE, but since it was my first time, I took some detours and encountered som...
oemguide Embedded System

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2571  1258  1935  2700  822  52  26  39  55  17 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号