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参数资料
| 型号： | XC9133B02AMR-G |
| 厂商： | Torex Semiconductor Ltd |
| 文件页数： | 5/15页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 0.26A SOT25 |
| 标准包装： | 3,000 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.5 V ~ 17.5 V |
| 输入电压： | 2.5 V ~ 6 V |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 260mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | SOT-25 |
XC9133
Series
■ TYPICAL APPLICATION CIRCUITS
● XC9133B02A
■ EXTERNAL COMPONENTS
SYMBOL
L
SBD (*1)
C IN
C L (*3)
VALUE
22 μ H
-
4.7 μ F
0.22 μ F
PART NUMBER
VLF3010A-220MR
XBS053V15R (*2)
MA2Z720
JMK107BJ475MA-B
TMK107BJ224KA-B
MANUFACTURER
TDK
TOREX
PANASONIC
TAIYO YUDEN
TAIYO YUDEN
NOTE:
*1: Please use a Schottky barrier diode (SBD) with a low junction capacitance.
*2: For using the XBS053V15R with four white LEDs in series, please be noted with a direct reverse voltage (V R =20V) and a
repetitive peak reverse voltage (V RM =30V).
*3: Use ceramic capacitors processing a low temperature coefficient.
■ OPERATIONAL EXPLANATION
The series consists of a reference voltage source, ramp wave circuit, error amplifier, PWM comparator, phase
compensation circuit, Lx overvoltage limit circuit, N-channel MOS driver transistor, current limiter circuit and others.
Phase compensation is performed on the resulting error amplifier output, to input a signal to the PWM comparator to
determine the turn-on time during switching. The PWM comparator compares, in terms of voltage level, the signal from
the error amplifier with the ramp wave from the ramp wave circuit, and delivers the resulting output to the N-channel MOS
driver transistor to cause the Lx pin to output a switching duty cycle. This process is continuously performed to ensure
stable output voltage. The current feedback circuit detects the N-channel MOS driver transistor's current for each
switching operation, and modulates the error amplifier output signal. This enables a stable feedback loop even when a
low ESR capacitor, such as a ceramic capacitor, is used, ensuring stable output voltage.
<Reference Voltage Source>
The reference voltage source provides the reference voltage to ensure stable output voltage of the IC.
<Ramp Wave Circuit>
The ramp wave circuit determines switching frequency.
The 1MHz (TYP.) of frequency is fixed internally.
Clock pulses generated in this circuit are used to produce ramp waveforms needed for PWM operation.
<Error Amplifier>
The error amplifier is designed to monitor output voltage. The amplifier compares the reference voltage with the FB pin
voltage. When a feed-back voltage becomes lower than the reference voltage, an output voltage of the error amplifier is
increased. Gain and frequency characteristics of the error amplifier output are fixed internally as an optimize signal.
5/15
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| XC9141B33CMR-G | 功能描述:Boost Switching Regulator IC Positive Fixed 3.3V 1 Output 800mA SC-74A, SOT-753 制造商:torex semiconductor ltd 系列:- 包装:剪切带（CT） 零件状态:有效 功能:升压 输出配置:正 拓扑:升压 输出类型:固定 输出数:1 电压 - 输入（最小值）:0.65V 电压 - 输入（最大值）:6V 电压 - 输出（最小值/固定）:3.3V 电压 - 输出（最大值）:- 电流 - 输出:800mA 频率 - 开关:1.2MHz 同步整流器:是 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商器件封装:SOT-25 标准包装:1 |
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