TPSM86838 Series

4.5-V to 28-V input, 8-A FCCM mode, synchronous buck module with HotRod QFN package

Catalog

4.5-V to 28-V input, 8-A FCCM mode, synchronous buck module with HotRod QFN package

Part	Voltage - Input (Max) [Max]	Supplier Device Package	Applications	Voltage - Input (Min) [Min]	Type	Mounting Type	Features	Package / Case	Power (Watts)	Current - Output (Max) [Max]	Number of Outputs	Voltage - Output 1 [Max]	Voltage - Output 1 [Min]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [z]	Size / Dimension [z]	Size / Dimension [y]	Size / Dimension [x]
Texas Instruments TPSM86838RCGR	28 V	19-B3QFN (5x5.5)	ITE (Commercial)	4.5 V	Non-Isolated PoL Module	Surface Mount	Adjustable Output Standby Output	19-PowerBFQFN Module	44 W	8 A	1	5.5 V	0.6 V	0.2 "	0.22 in	4.1 mm	0.16 in	5 mm	5.5 mm

Catalog

4.5-V to 28-V input, 8-A FCCM mode, synchronous buck module with HotRod QFN package

Key Features

• 4.5V to 28V input voltage range0.6V to 5.5V output voltage range8A continuous output current capabilityIntegrated MOSFETs, inductor, and basic passives0.6V ±1% reference voltage at 25°CD-CAP3™ control mode for fast transient responseTPSM86838 with FCCM for pseudo-fixed frequency with lower output rippleTPSM86837 with Eco-mode for high light-load efficiencyAdjustable soft-start time by SS capacitorBuilt-in output discharge functionSelectable 800kHz and 1200kHz switching frequencyPower-good indicator to monitor output voltageSupports up to 98% duty operationNon-latched protections for UV, OV, OT and UVLO–40°C to +150°C operating junction temperature19-pin 5.0mm × 5.5mm QFN HotRod™ package4.5V to 28V input voltage range0.6V to 5.5V output voltage range8A continuous output current capabilityIntegrated MOSFETs, inductor, and basic passives0.6V ±1% reference voltage at 25°CD-CAP3™ control mode for fast transient responseTPSM86838 with FCCM for pseudo-fixed frequency with lower output rippleTPSM86837 with Eco-mode for high light-load efficiencyAdjustable soft-start time by SS capacitorBuilt-in output discharge functionSelectable 800kHz and 1200kHz switching frequencyPower-good indicator to monitor output voltageSupports up to 98% duty operationNon-latched protections for UV, OV, OT and UVLO–40°C to +150°C operating junction temperature19-pin 5.0mm × 5.5mm QFN HotRod™ package

Description

The TPSM8683x is a high-efficiency, high-voltage input, easy-to-use, synchronous buck power module. The device integrates power MOSFETs, a shielded inductor, and basic passives, minimizing the design size. With the wide operating input voltage range of 4.5V to 28V, this device is an excellent choice for systems powered from 12V, 19V, 24V power-bus rails. TPSM8683x supports up to 8A continuous output current, which output voltage is between 0.6V and 5.5V. The TPSM8683x uses DCAP3 control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors like MLCC. The TPSM86838 operates in forced continuous conduction mode (FCCM) during light load which maintains lower output ripple during all load conditions. TPSM86837 operates at Eco-mode to attain high efficiency at light load. The TPSM8683x provides complete non-latched OV (Undervoltage), UV (Undervoltage), OC (Overcurrent), OT (Overtemperature), and UVLO (Undervoltage lockout) protections combined with power-good indicator and output discharge function features. The TPSM8683x is available in a 19-pin 5.0mm × 5.5mm HotRod QFN package, and the junction temperature is specified from –40°C to 150°C. The TPSM8683x is a high-efficiency, high-voltage input, easy-to-use, synchronous buck power module. The device integrates power MOSFETs, a shielded inductor, and basic passives, minimizing the design size. With the wide operating input voltage range of 4.5V to 28V, this device is an excellent choice for systems powered from 12V, 19V, 24V power-bus rails. TPSM8683x supports up to 8A continuous output current, which output voltage is between 0.6V and 5.5V. The TPSM8683x uses DCAP3 control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors like MLCC. The TPSM86838 operates in forced continuous conduction mode (FCCM) during light load which maintains lower output ripple during all load conditions. TPSM86837 operates at Eco-mode to attain high efficiency at light load. The TPSM8683x provides complete non-latched OV (Undervoltage), UV (Undervoltage), OC (Overcurrent), OT (Overtemperature), and UVLO (Undervoltage lockout) protections combined with power-good indicator and output discharge function features. The TPSM8683x is available in a 19-pin 5.0mm × 5.5mm HotRod QFN package, and the junction temperature is specified from –40°C to 150°C.