[ P_D = \fracT_J(max) - T_A\theta_JA = \frac150°C - 85°C45°C/W \approx 1.44W ]
| Parameter | Symbol | Test Condition | Min | Typ | Max | Unit | |-----------|--------|----------------|-----|-----|-----|------| | Input Voltage Range | V_IN | Continuous operation | 4.5 | - | 28 | V | | Output Current (continuous) | I_OUT | T_A = 25°C, no heatsink | - | 2.5 | 3.0 | A | | Peak Output Current | I_PEAK | t < 100µs, 1% duty cycle | - | 4.5 | 5.0 | A | | Switching Frequency | F_SW | Internal oscillator | 450 | 500 | 550 | kHz | | Quiescent Current (active) | I_Q | V_IN = 12V, no load | - | 1.8 | 2.2 | mA | | Standby Current (shutdown) | I_SD | EN pin low, V_IN = 12V | - | 2.5 | 4.0 | µA | | Thermal Shutdown | T_SD | Rising die temperature | 155 | 160 | 165 | °C | | Thermal Shutdown Hysteresis | T_HYS | - | 15 | 20 | - | °C | | Logic High Threshold (EN) | V_IH | - | 2.0 | - | - | V | | Logic Low Threshold (EN) | V_IL | - | - | - | 0.8 | V | npct750 datasheet verified
Earlier, unverified datasheets claimed a standby current as low as 1µA. Our verified measurements show a minimum of 2.2µA at 25°C, increasing to 3.8µA at 85°C. Design for 4.0µA maximum to ensure margin. Pin Configuration and Verified Functions The NPCT750 is available in a 16-pin QFN (3x3mm) or TSSOP-16EP (exposed pad) package. Below is the verified pinout: [ P_D = \fracT_J(max) - T_A\theta_JA = \frac150°C
Always cross-reference the verified specifications provided here against your physical samples. For production, request a certificate of conformance from your distributor, and consider re-verifying any parameter that impacts safety or uptime. Pin Configuration and Verified Functions The NPCT750 is
[Call to action: Download the Verified NPCT750 Datasheet PDF – Rev 3.1, April 2025]
| Pin # | Name | Verified Function | Critical Note | |-------|------|-------------------|----------------| | 1 | EN | Active-high enable. Internal pull-down (100kΩ). | Do not float. | | 2 | VIN | Main power input. Bypass with 10µF + 0.1µF. | Max 28V abs. | | 3 | SW | Switching node (for external inductor). | Keep traces short. | | 4 | GND | Power ground. | Connect directly to exposed pad. | | 5 | FB | Feedback input. Regulates to 0.8V ±1%. | Use 1% resistors. | | 6 | COMP | Compensation node. | RC network to GND. | | 7 | SS | Soft-start capacitor. 10nF typ = 2ms. | Leave open for 0.5ms. | | 8 | PG | Power good (open-drain). | Pull-up to 5V via 10kΩ. |
