TPS54360BDDA

The TPS54360BDDA is an electronic component from Texas Instruments. View the full TPS54360BDDA datasheet below including key specifications, electrical characteristics, absolute maximum ratings.

Manufacturer

Texas Instruments

Key Specifications

Parameter	Value
Packaging	Tube
Standard Pack Qty	75

Overview

Switching Voltage Regulators 60-V input 3.5-A s t ep-down DC/DC conve A 595-TPS54360BDDAR

Applications

Figure 51. TPS54360B Split Rail Power Supply

Pin Configuration

Pin Functions

Pin Functions

PIN	PIN	I/O	DESCRIPTION
NAME	NO.
BOOT	1	O	A bootstrap capacitor is required between BOOT and SW. If the voltage on this capacitor is below the minimum required to operate the high-side MOSFET, the output is switched off until the capacitor is refreshed.
VIN	2	I	Input supply voltage with 4.5 V to 60 V operating range.
EN	3	I	Enable pin, with internal pullup current source. Pull below 1.2 V to disable. Float to enable. Adjust the input undervoltage lockout with two resistors. See the Enable and Adjusting Undervoltage Lockout section.
RT/CLK	4	I	Resistor Timing and External Clock. An internal amplifier holds this pin at a fixed voltage when using an external resistor to ground to set the switching frequency. If the pin is pulled above the PLL upper threshold, a mode change occurs and the pin becomes a synchronization input. The internal amplifier is disabled and the pin is a high impedance clock input to the internal PLL. If clocking edges stop, the internal amplifier is re- enabled and the operating mode returns to resistor frequency programming.
FB	5	I	Inverting input of the transconductance (gm) error amplifier.
COMP	6	O	Error amplifier output and input to the output switch current (PWM) comparator. Connect frequency compensation components to this pin.
GND	7	-	Ground
SW	8	I	The source of the internal high-side power MOSFET and switching node of the converter.
Thermal Pad	9	-	GND pin must be electrically connected to the exposed pad on the printed circuit board for proper operation.

Electrical Characteristics

TJ = -40°C to +150°C, VIN = 4.5 to 60V (unless otherwise noted)

PARAMETER	PARAMETER	TEST CONDITIONS	MIN	TYP	MAX	UNIT
SUPPLY VOLTAGE (VIN PINS)	SUPPLY VOLTAGE (VIN PINS)	SUPPLY VOLTAGE (VIN PINS)	SUPPLY VOLTAGE (VIN PINS)	SUPPLY VOLTAGE (VIN PINS)	SUPPLY VOLTAGE (VIN PINS)	SUPPLY VOLTAGE (VIN PINS)
	Operating input voltage		4.5		60	V
	Internal undervoltage lockout threshold Internal undervoltage lockout threshold hysteresis	Rising	4.1	4.3 325	4.48	V mV
	Shutdown supply current	EN = 0 V, 25°C, 4.5 V ≤ V IN ≤ 60 V		2.25	4.5
	Operating: nonswitching supply current	FB = 0.9 V, T A = 25°C		146	175	μ A
ENABLE AND UVLO (EN pinS)	ENABLE AND UVLO (EN pinS)	ENABLE AND UVLO (EN pinS)	ENABLE AND UVLO (EN pinS)	ENABLE AND UVLO (EN pinS)	ENABLE AND UVLO (EN pinS)	ENABLE AND UVLO (EN pinS)
	Enable threshold voltage	No voltage hysteresis, rising and falling Enable threshold +50 mV	1.1	1.2 -4.6	1.3	V
	Input current	Enable threshold -50 mV	-0.58	-1.2	-1.8	μ A
	Hysteresis current		-2.2	-3.4	-4.5	μ A
VOLTAGE REFERENCE	VOLTAGE REFERENCE	VOLTAGE REFERENCE	VOLTAGE REFERENCE	VOLTAGE REFERENCE	VOLTAGE REFERENCE	VOLTAGE REFERENCE
	Voltage reference		0.792	0.8	0.808	V
HIGH-SIDE MOSFET	HIGH-SIDE MOSFET	HIGH-SIDE MOSFET	HIGH-SIDE MOSFET	HIGH-SIDE MOSFET	HIGH-SIDE MOSFET	HIGH-SIDE MOSFET
	On-resistance	V IN = 12 V, BOOT-SW = 6 V		92	190	m Ω
ERROR AMPLIFIER	ERROR AMPLIFIER Input current	ERROR AMPLIFIER	ERROR AMPLIFIER	ERROR AMPLIFIER 50	ERROR AMPLIFIER	ERROR AMPLIFIER nA
	Error amplifier transconductance (g M )	-2 μ A < I COMP < 2 μ A, V COMP = 1 V		350		μ S
Error	amplifier transconductance (g M ) during soft-start	-2 μ A < I COMP < 2 μ A, V COMP = 1 V, V FB = 0.4 V		77		μ S
	Error amplifier DC gain Min unity gain bandwidth	V FB = 0.8 V		10,000 2500		V/V kHz
	Error amplifier source/sink COMP to SW current transconductance	V (COMP) = 1 V, 100-mV overdrive		±30 12		μ A A/V
CURRENT LIMIT	CURRENT LIMIT	CURRENT LIMIT	CURRENT LIMIT	CURRENT LIMIT	CURRENT LIMIT	CURRENT LIMIT
		All VIN and temperatures, Open Loop (1)	4.5	5.5	6.8
	Current limit threshold	All temperatures, VIN = 12 V, Open Loop (1)	4.5	5.5	6.25	A
	V IN = 12 V, T A	= 25°C, Open Loop (1)	5.2	5.5	5.85
THERMAL SHUTDOWN	THERMAL SHUTDOWN Thermal shutdown Thermal shutdown hysteresis	THERMAL SHUTDOWN	THERMAL SHUTDOWN	THERMAL SHUTDOWN 176 12	THERMAL SHUTDOWN	THERMAL SHUTDOWN °C °C
TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK pinS)	TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK pinS)	TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK pinS)	TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK pinS)	TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK pinS)	TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK pinS)	TIMING RESISTOR AND EXTERNAL CLOCK (RT/CLK pinS)
	Switching frequency range using RT mode		100		2500	kHz
f SW	Switching frequency	R T = 200 k Ω	450	500	550	kHz
	Switching frequency range using CLK mode		160		2300	kHz
	RT/CLK high threshold			1.55	2	V
	RT/CLK low threshold		0.5	1.2		V

Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)

		MIN	MAX	UNIT
Input voltage	VIN	-0.3	65	V
Input voltage	EN	-0.3	8.4	V
Input voltage	BOOT		73	V
Input voltage	FB	-0.3	3	V
Input voltage	COMP	-0.3	3	V
Input voltage	RT/CLK	-0.3	3.6	V
	BOOT-SW		8	V
	SW	-0.6	65	V
	SW, 10-ns transient	-2	65	V
Operating junction temperature	Operating junction temperature	-40	150	°C
Storage temperature, T stg	Storage temperature, T stg	-65	150	°C

Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

		MIN	MAX	UNIT
V IN	Supply input voltage (1)	V O + V DO	60	V
V O	Output voltage	0.8	58.8	V
I O	Output current	0	3.5	A
T J	Junction temperature	-40	150	°C

Thermal Information

THERMAL METRIC (1)	THERMAL METRIC (1)	TPS54360B DDA (HSOIC) 8 PINS	UNIT
R θ JA	Junction-to-ambient thermal resistance	42	°C/W
R θ JC(top)	Junction-to-case (top) thermal resistance	45.8	°C/W
R θ JB	Junction-to-board thermal resistance	23.4	°C/W
ψ JT	Junction-to-top characterization parameter	5.9	°C/W
ψ JB	Junction-to-board characterization parameter	23.4	°C/W
R θ JC(bot)	Junction-to-case (bottom) thermal resistance	3.6	°C/W

Typical Application

The TPS54360B is a 60-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. Ideal applications are: 12 V, 24 and 48 V industrial and communications power systems.

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
TPS54360	Texas Instruments	—
TPS54360B	Texas Instruments	—
TPS54360BDDAR	Texas Instruments	8-PowerSOIC (0.154", 3.90mm Width)

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