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XC9261B36CPR-G

更新时间： 2024-11-16 12:17:23
品牌 Logo 应用领域
特瑞仕 - TOREX 转换器
页数 文件大小 规格书
28页 1105K
描述
COT Control, 1.5A Synchronous Step-Down DC/DC Converters

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XC9261B36CPR-G 数据手册

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XC9260/XC9261Series  
COT Control, 1.5A Synchronous Step-Down DC/DC Converters  
ETR05042-001  
☆GreenOperation-compatible  
■GENERAL DESCRIPTION  
The XC9260/XC9261 series is a group of synchronous-rectification type DC/DC converters with a built-in P-channel MOS driver  
transistor and N-channel MOS switching transistor, designed to allow the use of ceramic capacitors. Output voltage is internally  
set in a range from 0.8V to 3.6V (accuracy: ±2.0%) increments of 0.05V. The device provides a high efficiency, stable power  
supply with an output current of 1.5A to be configured using only a coil and two capacitors connected externally. Oscillation  
frequency is set to 1.2MHz or 3.0MHz can be selected for suiting to your particular application.  
As for operation mode HiSAT-COT (*) control excellent in transient response, the XC9260 series is PWM control, the XC9261  
series is automatic PWM/PFM switching control, allowing fast response, low ripple and high efficiency over the full range of loads  
(from light load to heavy load).  
During stand-by, all circuits are shutdown to reduce current consumption to as low as 1.0μA or less. As for the soft-start function  
as fast as 0.3ms in typical for quick turn-on. With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel MOS  
driver transistor is forced OFF when input voltage becomes 2.00V or lower. The B types integrate CL High Speed discharge  
function which enables the electric charge at the output capacitor CL to be discharged via the internal discharge.  
Two types of package SOT-89-5, USP-6C are available.  
(*) HiSAT-COT is an original Torex term for High Speed Transient Response.  
■FEATURES  
Input Voltage Range  
Output Voltage Range  
Quiescent Current  
■APPLICATIONS  
●Mobile phones  
:
:
:
:
:
2.7V～5.5V  
0.8V～3.6V (±2.0%)  
25μA (fOSC=3.0MHz)  
1.5A  
●Bluetooth headsets  
Output Current  
●Smart phones, Personal digital assistance  
●Portable game consoles  
●Digital still cameras, Camcorders  
●Codeless phones  
Oscillation Frequency  
1.2MHz, 3.0MHz  
90%  
Efficiency  
:
(VIN=3.7V, VOUT=1.8V, IOUT=200mA)  
HiSAT-COT Control  
100% Duty Cycle  
Control Methods  
:
:
:
:
:
:
:
:
:
:
:
:
:
:
PWM Control (XC9260)  
PWM/PFM Auto (XC9261)  
Thermal Shutdown  
Current Limit (Pendent character)  
Short Circuit Protection (Type B)  
Soft-Start  
●Point-of-Load (POL)  
Protection Circuits  
Functions  
UVLO  
CL High Speed Discharge (Type B)  
Ceramic Capacitor  
- 40℃ ～ + 105℃  
Capacitor  
Operating Ambient Temperature  
Packages  
SOT-89-5, USP-6C  
EU RoHS Compliant, Pb Free  
Environmentally Friendly  
■
TYPICAL APPLICATION CIRCUIT  
■TYPICAL PERFORMANCE  
CHARACTERISTICS  
XC9260A18D / XC9261A18D  
L = LQM2MPN1R0MGH(1.0 H)  
μ
C =10 F(GRM155R61A106M) C =10 F(GRM155R61A106M)  
μ
μ
IN  
L
VOUT  
1.5A  
L
100  
VIN  
VIN  
Lx  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
CE  
CE  
VOUT  
XC9261  
XC9260  
VIN = 5.0V  
VIN = 3.7V  
PGND  
AGND  
CIN  
CL  
VIN = 5.0V  
VIN = 3.7V  
0.1  
1
10  
100  
1000  
10000  
Output Current: IOUT (mA)  
1/28  
1234567...28

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