TPS54362-Q1 Automotive 3.6V to 48V, 3A Buck Converter with Low Iq and Voltage Supervisor

Description

The TPS54362-Q1 device is a step-down switch-mode power supply with a low-power mode and a programmable voltage supervisor. Integrated input voltage-line feed-forward topology improves line transient regulation of the voltage-mode buck regulator. The regulator has a cycle-by-cycle current limit. Pulse-skip mode operation under no load reduces the supply current to 65 µA. Using the enable pin reduces the supply shutdown current to 1 µA.

An open-drain reset signal indicates when the nominal output drops below the threshold set by an external resistor-divider network. A soft-start capacitor controls the output voltage start-up ramp. The device activates an internal undervoltage shutdown when the input supply ramps down to 2.6 V.

Frequency foldback operation protects the device during an overload conditions on the output. The device also has thermal shutdown protection due to excessive power dissipation.

The B-revision has an improved leakage current parameter, and improved discharged function while in disable mode.

Features

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C
  Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C5
Withstands Transients up to 60 V With an Operating
Range of 3.6 V to 48 V
Asynchronous Switch-Mode Regulator With External
Components (L and C), Load Current up to 3 A (max.)
0.8 V ± 1.5% Voltage Reference
200-kHz to 2.2-MHz Switching Frequency
High-Voltage-Tolerant Enable Input for ON/OFF State
Soft Start on Enable Cycle
Slew-Rate Control on Internal Power Switch
External Clock Input for Synchronization
Pulse-Skip Mode (PFM) During Light Output Loads
With Quiescent Current = 65 µA Typical
(LPM Operation)
External Compensation for Wide-Bandwidth Error
Amplifier
Internal Undervoltage Lockout, UVLO
Programmable Reset Power-On Delay
Reset-Function Filter Time for Fast Negative
Transients
Programmable Overvoltage Output Monitoring
Programmable Undervoltage Output Monitoring,
Issuance of Reset if Output Falls Below Threshold
Thermal Shutdown During Excessive Power Dissipation
Switch Current-Limit Protection
Short-Circuit and Overcurrent Protection of FET
Junction Temperature Range: –40°C to 150°C
20-Pin HTSSOP PowerPAD Package
Qualified for Automotive Applications

Parametrics

Compare all products in Buck converters (integrated switch)

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Part number	Order	Vin (Min) (V)	Vin (Max) (V)	Vout (Min) (V)	Vout (Max) (V)	Iout (Max) (A)	Regulated outputs (#)	Switching frequency (Min) (kHz)	Switching frequency (Max) (kHz)	Iq (Typ) (mA)	Features	Control mode	Duty cycle (Max) (%)	Operating temperature range (C)	Rating	Package Group	Type	Package size: mm2:W x L (PKG)
TPS54362-Q1	Order now	3.6	60	0.9	18	3	1	200	2200	0.065	Enable Frequency Synchronization Light Load Efficiency Over Current Protection Power Good Tracking	Voltage Mode	95	-40 to 125	Automotive	HTSSOP \| 20	Converter	20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP \| 20)
TPS54162-Q1	Samples not available	3.6	60	0.9	18	1	1	200	2200	0.05	Enable Frequency Synchronization Light Load Efficiency Over Current Protection Power Good Tracking UVLO Adjustable	Voltage Mode	90	-40 to 125	Automotive	HTSSOP \| 20	Converter	20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP \| 20)
TPS54262-Q1	Samples not available	3.6	60	0.9	18	2	1	200	2200	0.05	Enable Frequency Synchronization Light Load Efficiency Over Current Protection Power Good Tracking UVLO Adjustable	Voltage Mode	90	-40 to 125	Automotive	HTSSOP \| 20	Converter	20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP \| 20)

TPS54362-Q1 (ACTIVE) Automotive 3.6V to 48V, 3A Buck Converter with Low Iq and Voltage Supervisor

Description

Features

Parametrics