TPS53127 Series

4.5-V to 24-V, 700 kHz synchronous dual-D-CAP2 buck controller

Catalog

4.5-V to 24-V, 700 kHz synchronous dual-D-CAP2 buck controller

Part	Topology	Supplier Device Package	Function	Output Type	Number of Outputs	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Mounting Type	Output Configuration	Frequency - Switching	Package / Case	Package / Case	Control Features	Operating Temperature [Max]	Operating Temperature [Min]	Output Phases
Texas Instruments TPS53127PWR	Buck	24-TSSOP	Step-Down	Transistor Driver	2	4.5 V	24 V	Surface Mount	Positive	700 kHz	24-TSSOP	0.173 in 4.4 mm	Current Limit Enable Soft Start	85 °C	-40 °C	1
Texas Instruments TPS53127RGER	Buck	24-VQFN (4x4)	Step-Down	Transistor Driver	2	4.5 V	24 V	Surface Mount	Positive	700 kHz	24-VFQFN Exposed Pad		Current Limit Enable Soft Start	85 °C	-40 °C	1
Texas Instruments TPS53127RGET	Buck	24-VQFN (4x4)	Step-Down	Transistor Driver	2	4.5 V	24 V	Surface Mount	Positive	700 kHz	24-VFQFN Exposed Pad		Current Limit Enable Soft Start	85 °C	-40 °C	1

Catalog

4.5-V to 24-V, 700 kHz synchronous dual-D-CAP2 buck controller

Key Features

• D-CAP2 Mode ControlFast Transient ResponseNo External Parts Required for Loop CompensationCompatible With Ceramic Output CapacitorsHigh Initial Reference Accuracy (±1%)Low Output RippleWide Input Voltage Range: 4.5 V to 24 VOutput Voltage Range: 0.76 V to 5.5 VLow-Side RDS(ON)Loss-Less Current SensingAdaptive Gate Drivers with Integrated Boost DiodeAdjustable Soft StartNon-Sinking Pre-Biased Soft Start700-kHz Switching FrequencyCycle-by-Cycle Over-Current Limiting Control30-mV to 300-mV OCP Threshold VoltageThermally Compensated OCP by 4000 ppm/°C at ITRIPAPPLICATIONSPoint-of-Load Regulation in Low Power Systems forWide Range of ApplicationsDigital TV Power SupplyNetworking Home PinDigital Set-Top Box (STB)DVD Player/RecorderGaming ConsolesD-CAP2 Mode ControlFast Transient ResponseNo External Parts Required for Loop CompensationCompatible With Ceramic Output CapacitorsHigh Initial Reference Accuracy (±1%)Low Output RippleWide Input Voltage Range: 4.5 V to 24 VOutput Voltage Range: 0.76 V to 5.5 VLow-Side RDS(ON)Loss-Less Current SensingAdaptive Gate Drivers with Integrated Boost DiodeAdjustable Soft StartNon-Sinking Pre-Biased Soft Start700-kHz Switching FrequencyCycle-by-Cycle Over-Current Limiting Control30-mV to 300-mV OCP Threshold VoltageThermally Compensated OCP by 4000 ppm/°C at ITRIPAPPLICATIONSPoint-of-Load Regulation in Low Power Systems forWide Range of ApplicationsDigital TV Power SupplyNetworking Home PinDigital Set-Top Box (STB)DVD Player/RecorderGaming Consoles

Description

The TPS53127 is a dual, adaptive on-time D-CAP2™ mode synchronous buck controller. The part enables system designers to cost effectively complete the suite of various end equipment’s power bus regulators with a low external component count and low standby consumption. The main control loop for the TPS53127 uses the D-CAP2 Mode topology which provides a very fast transient response with no external component. The TPS53127 also has a proprietary circuit that enables the device to adapt not only low equivalent series resistance (ESR) output capacitors such as POSCAP/SP-CAP, but also ceramic capacitor. The part provides a convenient and efficient operation with conversion voltages from 4.5 V to 24 V and output voltage from 0.76 V to 5.5 V. The TPS53127 is available in the 24 pin RGE/PW package, and is specified from –40°C to 85°C ambient temperature range. The TPS53127 is a dual, adaptive on-time D-CAP2™ mode synchronous buck controller. The part enables system designers to cost effectively complete the suite of various end equipment’s power bus regulators with a low external component count and low standby consumption. The main control loop for the TPS53127 uses the D-CAP2 Mode topology which provides a very fast transient response with no external component. The TPS53127 also has a proprietary circuit that enables the device to adapt not only low equivalent series resistance (ESR) output capacitors such as POSCAP/SP-CAP, but also ceramic capacitor. The part provides a convenient and efficient operation with conversion voltages from 4.5 V to 24 V and output voltage from 0.76 V to 5.5 V. The TPS53127 is available in the 24 pin RGE/PW package, and is specified from –40°C to 85°C ambient temperature range.