نظرة عامة على المنتج
The TPS63020DSJR from Texas Instruments is a high-efficiency single-inductor buck-boost converter with 4A integrated switches in a 14-pin VSON (4x3mm) package. It supports input voltages from 1.8V to 5.5V and adjustable output voltages from 1.2V to 5.5V, delivering up to 2A output current. With a fixed 2.4MHz switching frequency, synchronous rectification, power-save mode at light loads, and only 25µA quiescent current, it achieves up to 96% efficiency. Features include power-good output, load disconnect during shutdown, and comprehensive protection.
المواصفات الرئيسية
| الطوبولوجيا | Buck-Boost (Single Inductor, Non-Inverting) |
| نطاق جهد الإدخال | 1.8V to 5.5V |
| Output Voltage Range | 1.2V to 5.5V (Adjustable) |
| Max Output Current | 2A (VIN > 2.5V, VOUT = 3.3V) |
| Switch Current Limit | 4A (typical) |
| تردد التحويل | 2.4 MHz (fixed) |
| تيار التهدئة | 25 µA (typical, operating) |
| تيار إيقاف التشغيل | < 1 µA |
| Efficiency (typical) | Up to 96% |
| Synchronous Rectification | Yes (integrated MOSFETs) |
| Power Good Output | Yes (open-drain) |
| Load Disconnect | Yes (during shutdown) |
| درجة حرارة التشغيل | -40 درجة مئوية إلى +85 درجة مئوية |
| الحزمة | 14-VSON (4 x 3 x 0.9 mm) |
الميزات
- Single-inductor buck-boost topology with 4A integrated switches
- 1.8V to 5.5V input, 1.2V to 5.5V adjustable output
- Up to 2A output current (VIN > 2.5V, VOUT = 3.3V)
- Fixed 2.4MHz switching frequency allows small external components
- Synchronous rectification for high efficiency across load range
- Power-save mode at light loads with 25µA quiescent current
- Power-good output (open-drain) for output voltage monitoring
- Load disconnect during shutdown minimizes battery drain
- Dynamic current limit with soft-start and short-circuit protection
- Overvoltage protection, undervoltage lockout, and overtemperature shutdown
التطبيقات
- Battery-powered portable devices (single-cell Li-Ion, dual-cell AA/AAA)
- IoT sensors and wireless modules with fluctuating supply rails
- Supercapacitor backup power systems
- Single-board computers and portable data terminals
- Barcode scanners, IP cameras, and video doorbells