TPS5110 Series
4.5-V to 28-V, synchronous buck controller with NMOS LDO controller
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Voltage - Supply▲▼ | Voltage - Supply▲▼ | Package / Case▲▼ | Package / Case▲▼ | Package / Case | Frequency - Switching▲▼ | w/LED Driver▲▼ | Topology | w/Supervisor▲▼ | Supplier Device Package | Number of Outputs▲▼ | Voltage/Current - Output 2 | Mounting Type | w/Sequencer▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Voltage/Current - Output 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS5110PWPMIC - Voltage Regulators - Linear Switching 2 Output Step-Down (Buck) Synchronous (1), Linear (LDO) (1) 300kHz 24-TSSOP | 1.100000023841858 V | 28 V | 0.004399999976158142 m | 0.004394200164824724 m | 24-TSSOP | 300000 Hz | Linear (LDO) (1), Step-Down (Buck) Synchronous (1) | 24-TSSOP | 2 ul | Controller | Surface Mount | -40 °C | 85 °C | Controller | |||
Texas Instruments TPS5110PWG4PMIC - Voltage Regulators - Linear Switching 2 Output Step-Down (Buck) Synchronous (1), Linear (LDO) (1) 300kHz 24-TSSOP | 1.100000023841858 V | 28 V | 0.004399999976158142 m | 0.004394200164824724 m | 24-TSSOP | 300000 Hz | Linear (LDO) (1), Step-Down (Buck) Synchronous (1) | 24-TSSOP | 2 ul | Controller | Surface Mount | -40 °C | 85 °C | Controller |
Key Features
• Switching Mode Step-Down dc-to-dc Controller With Fast LDO ControllerInput Voltage RangeSwitcher: 4.5 V to 28 VLDO: 1.1 V to 3.6 VOutput Voltage RangeSwitcher: 0.9 V to 3.5 VLDO: 0.9 V to 2.5 VSynchronous for High EfficiencyPrecision VREF(±1 %)PWM Mode Control: Max. 500-kHz OperationHigh-Speed Error AmplifierOvercurrent Protection With Temperature Compensation CircuitOvervoltage and Undervoltage ProtectionProgrammable Short-Circuit ProtectionAPPLICATIONSNotebook PCs, PDAsConsumer Game SystemsDSP ApplicationSwitching Mode Step-Down dc-to-dc Controller With Fast LDO ControllerInput Voltage RangeSwitcher: 4.5 V to 28 VLDO: 1.1 V to 3.6 VOutput Voltage RangeSwitcher: 0.9 V to 3.5 VLDO: 0.9 V to 2.5 VSynchronous for High EfficiencyPrecision VREF(±1 %)PWM Mode Control: Max. 500-kHz OperationHigh-Speed Error AmplifierOvercurrent Protection With Temperature Compensation CircuitOvervoltage and Undervoltage ProtectionProgrammable Short-Circuit ProtectionAPPLICATIONSNotebook PCs, PDAsConsumer Game SystemsDSP Application
Description
AI
The TPS5110 provides one PWM-mode synchronous buck regulator controller (SBRC) and one low drop-out (LDO) regulator controller. The TPS5110 supports a low-voltage/high-current power supply for I/O and other peripherals in modern digital systems. The SBRC of the TPS5110 automatically adjusts from PWM mode to SKIP mode to maintain high efficiency under all load conditions. The LDO controller drives an external N-channel power MOSFET that realizes fast response and ultra-low dropout voltage. A unique overshoot protection circuit prevents a voltage hump at fast load decreasing transients. The current protection circuit for SBRC detects the drain-to-source voltage drop across the low-side and high-side power MOSFET while it is conducting. Also, the current protection circuit has a temperature coefficient to compensate for the RDS(on)variation of the MOSFET. This resistor-less current protection simplifies the system design and reduces the external parts count. The LDO controller includes current-limit protection. Other features, such as undervoltage lockout, power good, overvoltage, undervoltage, and programmable short-circuit protection promote system reliability.
The TPS5110 provides one PWM-mode synchronous buck regulator controller (SBRC) and one low drop-out (LDO) regulator controller. The TPS5110 supports a low-voltage/high-current power supply for I/O and other peripherals in modern digital systems. The SBRC of the TPS5110 automatically adjusts from PWM mode to SKIP mode to maintain high efficiency under all load conditions. The LDO controller drives an external N-channel power MOSFET that realizes fast response and ultra-low dropout voltage. A unique overshoot protection circuit prevents a voltage hump at fast load decreasing transients. The current protection circuit for SBRC detects the drain-to-source voltage drop across the low-side and high-side power MOSFET while it is conducting. Also, the current protection circuit has a temperature coefficient to compensate for the RDS(on)variation of the MOSFET. This resistor-less current protection simplifies the system design and reduces the external parts count. The LDO controller includes current-limit protection. Other features, such as undervoltage lockout, power good, overvoltage, undervoltage, and programmable short-circuit protection promote system reliability.