Description
The KA7500B is used for the control circuit of the PWM switching regulator. The KA7500B consists of 5V reference voltage circuit, two error amplifiers, a flip flop, an output control circuit, a PWM comparator, a dead time comparator and an oscillator. This device can be operated in the switching frequency of 1kHz to 300kHz.
Features
- Internal Regulator Provides a Stable SV Reference Supply Trimmed to 5%
- Uncommitted Output TR for 200mA Sink or Source Current
- Output Control For Push-Pull or Single Ended Operation
- Variable Duty Cycle By Dead Time Control (Pin 4) Complete PWM Control Circuit
- On-Chip Oscillator With Master or Slave Operation
- Internal Circuit Prohibits Double Pulse at Either Output
Product Attributes
| TYPE | DESCRIPTION |
| Category | Integrated Circuits (ICs)
Power Management (PMIC) DC DC Switching Controllers |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage – Supply (Vcc/Vdd) | 7V ~ 42V |
| Frequency – Switching | 1kHz ~ 300kHz |
| Duty Cycle (Max) | 45% |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Control Features | Dead Time Control |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole |
| Package / Case | 16-DIP |
| Base Product Number | KA7500 |
Applications:
- DC-DC Buck Converters: Converts a higher DC input voltage to a lower DC output voltage.
- Power Supply for Low-Power Devices: Used in devices that require a stable and regulated low voltage.
- Battery-Powered Systems: Ideal for systems where efficient power conversion from a higher voltage battery is needed.
- Power Regulation in Consumer Electronics: Used in TVs, audio systems, and other electronics that need regulated DC power.
- Industrial Power Supplies: Power systems for various industrial equipment requiring step-down voltage regulation.