HX78L05 is available in a SOT89-3 package. There is sufficient heat dissipation for the regulator to provide 100 mA of output current. Current limiting is included to limit the peak output current to a safe value. Safe area protection is provided for the output transistors to limit internal power consumption. A thermal shutdown circuit prevents the IC from overheating if the internal power consumption is too high to provide heat dissipation.
1. Specifications
VIN=10V，IOUT=40mA，CIN=0.33uF，COUT=0.1uF，TJ=25℃，unless otherwise specified
| Parameter | Symbol | Condition | Min. | Typ. | Max. | Unit |
| Output Voltage (HX78L05) | VOUT | TJ = 25℃ | 4.8 | 5 | 5.2 | V |
| VIN = 7 to 20V; IOUT=1 mA to 40 mA; TJ=0℃ to 125℃ | 4.75 | 5.25 | ||||
| IOUT=1 mA to 70 mA; TJ=0℃ to 125℃ | 4.75 | 5.25 | ||||
| Line Adjustment Ratio | △VLINE | VIN = 7 to 20V， | 12 | 30 | mV | |
| VIN = 8 to 20V， | 10 | 25 | ||||
| Load Adjustment Ratio | â–³VLOAD | IOUT=1 mA to 100 mA | 20 | 50 | mV | |
| IOUT=1 mA to 40 mA | 10 | 25 | ||||
| Static Current | IQ | TJ = 25℃ | 0.3 | mA | ||
| TJ = 125℃ | 1 | |||||
| Static Current Change | △IQ | VIN = 8 to 20V; TJ=0℃ to 125℃ | 0.2 | mA | ||
| IOUT=1 mA to 40 mA; TJ=0℃ to 125℃ | 0.1 | |||||
| Ripple Rejection | PSRR | f = 120Hz; VIN = 8V to 20V; TJ = 25 C | 75 | 84 | dB | |
| Output Noise Voltage | VN | f = 10Hz to 100KHz | 32 | uV | ||
| Return Voltage | VDROP | 0.8 | V | |||
| VOUT Temperature/Coefficient | △VOUT/△T | IOUT = 5mA | 0.2 | 0.5 | mV/℃ | |
| Peak Output Current | IPK | 170 | mA |
2. Product Applicatons
- Battery Charger.
- Portable Meter.
- LED Lighting.
- Low Power Loss Supplies.
3. Typical Application Circuit Diagram
4. Pin Diagram and Functional Description
|
|
Pin Name | Pin Number | Functional Description |
| VOUT | 1 | Output Voltage Pin | |
| GND | 2 | Ground | |
| VIN | 3 | Input Voltage Pin |
