参数资料
型号: XCL202B331BR-G
厂商: Torex Semiconductor Ltd
文件页数: 10/21页
文件大小: 0K
描述: IC STEP DOWN DC/DC 3.3V CL2025
标准包装: 1
系列: XCL202
类型: 非隔离(POL)
输出数: 1
电压 - 输入(最小): 2V
电压 - 输入(最大): 6V
Voltage - Output 1: 3.3V
电流 - 输出(最大): 400mA
特点: 具有远程开/关功能和 UVLO
安装类型: 表面贴装
封装/外壳: 1008(2520 公制)
尺寸/尺寸: 0.10" L x 0.08" W x 0.04" H(2.5mm x 2.0mm x 1.04mm)
包装: 标准包装
工作温度: -40°C ~ 85°C
效率: 92%
其它名称: 893-1173-6
XCL201/XCL202 Series
■ OPERATIONAL DESCRIPTION (Continued)
<CE Pin Function>
The operation of the XCL201/XCL202 series will enter into the shut down mode when a low level signal is input to the CE pin.
During the
shutdown mode, the current consumption of the IC becomes 0 μ A (TYP.), with a state of high impedance at the Lx pin and V OUT pin.
The IC
starts its operation by inputting a high level signal to the CE pin.
● XCL20/XCL202 series - Examples of how to use CE pin
The input to the CE pin is a CMOS input and the sink current is 0 μ A (TYP.).
V DD
R1
V IN
V DD
SW_CE
V IN
(A)
SW_CE
ON
OFF
SELECTED STATUS
Stand-by
Operation
CE
CE
(B)
SW_CE
ON
OFF
SELECTED STATUS
Operation
Stand-by
< IC inside >
<Soft Start>
Soft start time is internally set 0.25ms to 0.32ms (TYP).
< IC inside >
Soft start time is defined as the time to reach 90% of the output nominal voltage when
the CE pin is turned on.
t SS
V CEH
0V
V OUT
0V
■ FUNCTION CHART
CE
OPERATIONAL STATES
VOLTAGE
LEVEL
XCL201
XCL202
H Level
L Level
(*1)
(*2)
Synchronous
PWM Fixed Control
Stand-by
Synchronous
PWM/PFM Automatic Switching
Stand-by
* CE pin voltage level range
(* 1 )
(* 2 )
(* 3 )
H level: 0.65V<V CE <6V
L level: 0V<V CE <0.25V
CE pin should not be left open to avoid unstable operation.
10/21
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