XC9106/XC9107 replaces NCP1403
- Series name: XC9106/XC9107
- Features: PWM / PFM
- Input voltage (V): minimum 0.9 maximum 10
- Output voltage (V): minimum 1.5 maximum 30
- Maximum output current (mA): 1000
- Oscillation frequency: 100kHz; 300kHz
- Built-in FET: None
- Package: SOT-25; USP-6B
Summary of TOREX-XC9106/XC9107 Series:
The XC9106/XC9107 series is a step-up DC/DC controller that can input a reference voltage (Vref) from the outside.
The output voltage is set by an external resistor (RFB1, 2) and a reference voltage Vref. This series can be easily externally set to output voltage, suitable for applications that use software to change voltage, such as PDA's LCD power supply.
Regardless of which load capacitor is used, the output remains stable. When using a low ESR capacitor, a 0.1Ω RSENSE is required for phase compensation. This makes the use of ceramic capacitors simpler and reduces the ripple of the output, reducing the area used by the PCB. Tantalum and electrolytic capacitors can also be used, in which case RSENSE is not required.
There are high oscillation frequencies, low ripple 300kHz products, and low operating current 100kHz products.
The XC9107 series is a PWM/PFM automatic switching control type. When the load is light, the XC9107 automatically switches from PWM to PFM, maintaining high efficiency from light load to high current output. When this series enters standby mode (CE/PWM terminal: "L"), the operating current can be reduced to less than 1.0A.
Features: Input voltage range 0.9V~10V
High efficiency 85% (TYP.)
Power supply voltage range 1.8V ~ 10.0V and greater than Vref +0.7V
VREF input range 0.8V~2.5V (±2.0%)
Output voltage range Vref × external divider resistor ratio, VOUT = Vref × (RFB1 + RFB2) / RFB2
Oscillation frequency 300kHz, 100kHz (±15%)
The output current is greater than 30mA (VIN=3.3V, VOUT=20V, when using the peripherals of the circuit diagram below)
Control mode PWM control (XC9106), PWM/PFM automatic switching control (XC9107)
Standby current ISTB=1.0μA (MAX.)
Load Capacitor Compatible with Low ESR Capacitor Package SOT-25, USP-6B
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