Catalog(8 parts)
| Part | Synchronous Rectifier▲▼ | Output Configuration | Topology | Package / Case | Package / Case▲▼ | Package / Case▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Duty Cycle (Max)▲▼ | Output Phases▲▼ | Mounting Type | Function | Clock Sync▲▼ | Control Features | Output Type | Frequency - Switching▲▼ | Frequency - Switching▲▼ | Number of Outputs▲▼ | Voltage - Supply (Vcc/Vdd)▲▼ | Voltage - Supply (Vcc/Vdd)▲▼ | Supplier Device Package | Package / Case▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments UC3526ADWG4Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull Regulator Positive Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 18-SOIC | Positive | Boost, Buck, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | 18-SOIC | 0.007493000011891127 m | 0.007499999832361937 m | 70 °C | 0 °C | 0.4900000095367432 ul | 1 ul | Surface Mount | Step-Down, Step-Up, Step-Up/Step-Down | Enable, Frequency Control, Reset, Soft Start | Transistor Driver | 600000 Hz | 1 Hz | 2 ul | 7 V | 35 V | 18-SOIC | |||
Texas Instruments UC3526DWBuck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull Regulator Positive Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 18-SOIC | Positive | Boost, Buck, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | 18-SOIC | 0.007493000011891127 m | 0.007499999832361937 m | 70 °C | 0 °C | 0.4900000095367432 ul | 1 ul | Surface Mount | Step-Down, Step-Up, Step-Up/Step-Down | Enable, Frequency Control, Reset, Soft Start | Transistor Driver | 400000 Hz | 1 Hz | 2 ul | 8 V | 35 V | 18-SOIC | |||
Texas Instruments UC3526AJBoost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull Regulator Positive Output Step-Up, Step-Down DC-DC Controller IC 18-CDIP | Positive | Boost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull | 18-CDIP | 0.007619999814778566 m | 70 °C | 0 °C | 0.4900000095367432 ul | 1 ul | Through Hole | Step-Down, Step-Up | Enable, Frequency Control, Reset, Soft Start | Transistor Driver | 400000 Hz | 1 Hz | 2 ul | 7 V | 35 V | 18-CDIP | 0.007619999814778566 m | |||
Texas Instruments UC3526NBuck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull Regulator Positive Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 18-PDIP | Positive | Boost, Buck, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | 18-DIP | 0.007619999814778566 m | 70 °C | 0 °C | 0.4900000095367432 ul | 1 ul | Through Hole | Step-Down, Step-Up, Step-Up/Step-Down | Enable, Frequency Control, Reset, Soft Start | Transistor Driver | 400000 Hz | 1 Hz | 2 ul | 8 V | 35 V | 18-PDIP | 0.007619999814778566 m | |||
Texas Instruments UC3526ADWTRBuck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull Regulator Positive Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 18-SOIC | Positive | Boost, Buck, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | 18-SOIC | 0.007493000011891127 m | 0.007499999832361937 m | 70 °C | 0 °C | 0.4900000095367432 ul | 1 ul | Surface Mount | Step-Down, Step-Up, Step-Up/Step-Down | Enable, Frequency Control, Reset, Soft Start | Transistor Driver | 600000 Hz | 1 Hz | 2 ul | 7 V | 35 V | 18-SOIC | |||
Texas Instruments UC3526AQBuck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull Regulator Positive Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 20-PLCC (9x9) | Positive | Boost, Buck, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | 20-LCC (J-Lead) | 70 °C | 0 °C | 0.4900000095367432 ul | 1 ul | Surface Mount | Step-Down, Step-Up, Step-Up/Step-Down | Enable, Frequency Control, Reset, Soft Start | Transistor Driver | 600000 Hz | 1 Hz | 2 ul | 7 V | 35 V | 20-PLCC (9x9) | |||||
Texas Instruments UC3526DWTRBuck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull Regulator Positive Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 18-SOIC | Positive | Boost, Buck, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | 18-SOIC | 0.007493000011891127 m | 0.007499999832361937 m | 70 °C | 0 °C | 0.4900000095367432 ul | 1 ul | Surface Mount | Step-Down, Step-Up, Step-Up/Step-Down | Enable, Frequency Control, Reset, Soft Start | Transistor Driver | 400000 Hz | 1 Hz | 2 ul | 8 V | 35 V | 18-SOIC | |||
Texas Instruments UC3526ADWBuck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull Regulator Positive Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 18-SOIC | Positive | Boost, Buck, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | 18-SOIC | 0.007493000011891127 m | 0.007499999832361937 m | 70 °C | 0 °C | 0.4900000095367432 ul | 1 ul | Surface Mount | Step-Down, Step-Up, Step-Up/Step-Down | Enable, Frequency Control, Reset, Soft Start | Transistor Driver | 600000 Hz | 1 Hz | 2 ul | 7 V | 35 V | 18-SOIC |
Key Features
• 8 To 35V Operation5V Reference Trimmed To ±1%1Hz To 400kHz Oscillator RangeDual 100mA Source/Sink OutputsDigital Current LimitingDouble Pulse SuppressionProgrammable DeadtimeUnder-Voltage LockoutSingle Pulse MeteringProgrammable Soft-StartWide Current Limit Common Mode RangeTTL/CMOS Compatible Logic PortsSymmetry Correction CapabilityGuaranteed 6 Unit Synchronization8 To 35V Operation5V Reference Trimmed To ±1%1Hz To 400kHz Oscillator RangeDual 100mA Source/Sink OutputsDigital Current LimitingDouble Pulse SuppressionProgrammable DeadtimeUnder-Voltage LockoutSingle Pulse MeteringProgrammable Soft-StartWide Current Limit Common Mode RangeTTL/CMOS Compatible Logic PortsSymmetry Correction CapabilityGuaranteed 6 Unit Synchronization
Description
AI
The UC1526 is a high performance monolithic pulse width modulator circuit designed for fixed-frequency switching regulators and other power control applications. Included in an 18-pin dual-in-line package are a temperature compensated voltage reference, sawtooth oscillator, error amplifier, pulse width modulator, pulse metering and setting logic, and two low impedance power drivers. Also included are protective features such as soft-start and under-voltage lockout, digital current limiting, double pulse inhibit, a data latch for single pulse metering, adjustable deadtime, and provision for symmetry correction inputs. For ease of interface, all digital control ports are TTL and B-series CMOS compatible. Active LOW logic design allows wired-OR connections for maximum flexibility. This versatile device can be used to implement single-ended or push-pull switching regulators of either polarity, both transformerless and transformer coupled. The UC1526 is characterized for operation over the full military temperature range of -55°C to +125°C. The UC2526 is characterized for operation from -25°C to +85°C, and the UC3526 is characterized for operation from 0° to +70°C.
The UC1526 is a high performance monolithic pulse width modulator circuit designed for fixed-frequency switching regulators and other power control applications. Included in an 18-pin dual-in-line package are a temperature compensated voltage reference, sawtooth oscillator, error amplifier, pulse width modulator, pulse metering and setting logic, and two low impedance power drivers. Also included are protective features such as soft-start and under-voltage lockout, digital current limiting, double pulse inhibit, a data latch for single pulse metering, adjustable deadtime, and provision for symmetry correction inputs. For ease of interface, all digital control ports are TTL and B-series CMOS compatible. Active LOW logic design allows wired-OR connections for maximum flexibility. This versatile device can be used to implement single-ended or push-pull switching regulators of either polarity, both transformerless and transformer coupled. The UC1526 is characterized for operation over the full military temperature range of -55°C to +125°C. The UC2526 is characterized for operation from -25°C to +85°C, and the UC3526 is characterized for operation from 0° to +70°C.