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FP6291LR-G1
SOT-23-6 (2.9x1.6mm)
The FP6291LR-G1 from Feeling Technology is a 5V boost converter with 1A output, 1.2MHz switching, and 0.8-4.5V input in SOT-23-6 for USB power and Li-ion boost.
| الحزمة | SOT-23-6 (2.9×1.6mm) |
The FP6291LR-G1 from Feeling Technology is a 5V boost converter with 1A output, 1.2MHz switching, and 0.8-4.5V input in SOT-23-6 for USB power and Li-ion boost.
The FP6291LR-G1 is a 5V/1A boost converter from Feeling Technology (Feeling Tech) in SOT-23-5, designed for single-cell Li-Ion to 5V USB power conversion. It uses a fixed-frequency PWM architecture at 1.2MHz with an internal N-channel MOSFET rated for 2A peak current. The output voltage is set by the feedback divider: VOUT = 0.6V x (1 + R1/R2), where R1 connects from VOUT to FB and R2 connects from FB to GND. For 5V output, typical values are R1=470kOhm and R2=68kOhm. The current-mode control loop provides stable operation with ceramic output capacitors (no ESR requirement). The device achieves up to 92% efficiency at 5V/500mA output from a 3.7V Li-Ion cell. The EN pin has a 1.5V threshold, allowing direct connection to a GPIO for power control. Internal soft-start (approximately 2ms) limits inrush current. The 2.4V minimum input voltage allows operation from a deeply discharged Li-Ion cell. The low 1uA shutdown current extends battery life in portable devices.
| دبوس | الاسم | النوع | الوظيفة |
|---|---|---|---|
| 1 | LX | المخرجات | Switching node (internal MOSFET drain) |
| 2 | GND | الطاقة | أرضي |
| 3 | EN | المدخلات | Enable control (HIGH=on, LOW=shutdown) |
| 4 | FB | المدخلات | Feedback (0.6V reference for output set) |
| 5 | VCC | الطاقة | Input supply (2.4-4.5V) |
| الشركة المصنعة | رقم الجزء | الحزمة | الملاحظات |
|---|---|---|---|
| Feeling Tech | FP6291LR-G1 | SOT-23-5 | Same device, alternate label |
| Silan | SY2161ASC | SOT-23-5 | Boost, 5V/1A, similar spec |
| تكساس إنسترومنتس | TLV61220DBVR | SOT-23-5 | Boost, 5V/400mA, 1.2MHz |
| Richtek | RT9266-33GB | SOT-23-5 | Boost, 3.3V fixed, 1A |
| Monolithic Power | MP3426DN-LF-Z | QFN-8 | Boost, 5V/2A, higher current |
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