09 Ic Datasheet | Highway

For further reading, look for application notes on "Automotive Power Supply Design Using Linear Regulators" or "Thermal Calculations for LDOs." Disclaimer: Specifications provided are aggregated from typical datasheets. Actual parameters may vary by manufacturer. Always validate with the official component datasheet before production.

| Parameter | Symbol | Min | Max | Unit | |-----------|--------|-----|-----|------| | Input Voltage | VIN | -0.3 | 45 | V | | Output Voltage | VOUT | -0.3 | VIN + 0.3 | V | | Enable/Adjust Voltage | V_ADJ | -0.3 | 40 | V | | Maximum Output Current | I_OUT | Internally limited | 2.5 | A | | Junction Temperature | T_J | -40 | 150 | °C | | Storage Temperature | T_STG | -65 | 150 | °C | | Lead Temperature (soldering, 10s) | | | 260 | °C |

When incorporating the Highway 09 into your next design, pay special attention to input/output capacitor selection, thermal management, and PCB layout. Always refer to the manufacturer-provided datasheet for the exact revision you are using, as minor electrical variations can exist between production batches. highway 09 ic datasheet

| IC Part | Input Max | Current | Dropout | Key Difference | |---------|-----------|---------|---------|----------------| | | 40V | 1.5A | 300mV | Good balance; rugged | | LM7805 | 35V | 1.0A | 2V | Older, higher dropout | | LM317 | 40V | 1.5A | 1.7V | Adjustable only | | LT1086 | 30V | 1.5A | 1.3V | Lower dropout but costly |

A: For output current above 500mA with a voltage drop of more than 5V, yes. Calculate power: P = (VIN – VOUT) × IOUT. If P > 1W, use a heatsink. For further reading, look for application notes on

Operating near maximum ratings reduces lifetime. Provide adequate heatsinking if I_OUT > 500mA. 4. Electrical Characteristics Typical values at VIN = 12V, I_OUT = 500mA, T_A = 25°C, unless otherwise noted.

A: Likely due to improper output capacitor ESR. Use a 22µF tantalum or a 10µF ceramic plus 1Ω in series as a test. Ensure capacitor is within 20mm of the VOUT pin. | Parameter | Symbol | Min | Max

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VIN (Input) | Unregulated input voltage. Bypass with a 10µF capacitor to ground. | | 2 | GND (Ground) | Common ground for input and output circuits. | | 3 | VOUT (Output) | Regulated output. Requires a 10µF to 22µF output capacitor for stability. | | 4 (SOP-8 only) | ADJ/EN | Adjust (for variable version) or Enable (shutdown when low). |