TPS54386-Q1

Name: TPS54386-Q1
Brand: TI
SKU: TPS54386-Q1
Price: 1.114 USD

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Automotive 4.5V to 28V, 600kHz Fixed Frequency Dual 3A Buck Converter

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Data sheet

document-pdfAcrobat 3-A Dual Non-Synchronous Converter With Integrated Hi-Side MOSFET datasheet (Rev. A)

TPS54386-Q1

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Data sheet

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Product details

Rating

Automotive

Operating temperature range (°C)

-40 to 105

Topology

Buck

Type

Converter

Iout (max) (A)

3

Vin (min) (V)

4.5

Vin (max) (V)

28

Switching frequency (min) (kHz)

600

Switching frequency (max) (kHz)

600

Features

Enable, Phase Interleaving

Control mode

current mode

Vout (min) (V)

0.8

Vout (max) (V)

25.2

Iq (typ) (µA)

1800

Duty cycle (max) (%)

85

Rating

Automotive

Operating temperature range (°C)

-40 to 105

Topology

Buck

Type

Converter

Iout (max) (A)

3

Vin (min) (V)

4.5

Vin (max) (V)

28

Switching frequency (min) (kHz)

600

Switching frequency (max) (kHz)

600

Features

Enable, Phase Interleaving

Control mode

current mode

Vout (min) (V)

0.8

Vout (max) (V)

25.2

Iq (typ) (µA)

1800

Duty cycle (max) (%)

85

HTSSOP (PWP)

14

32 mm² 5 x 6.4

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 2: –40°C to +105°C Ambient Operating Temperature
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C3B
4.5-V to 28-V Input Range
Output Voltage Range 0.8 V to 90% of Input Voltage
Output Current Up to 3 A
Fixed Switching Frequency: 600 kHz
Three Selectable Levels of Overcurrent Protection (Output 2)
0.8-V 1.5% Voltage Reference
2.1-ms Internal Soft Start
Dual PWM Outputs 180° Out-of-Phase
Ratiometric or Sequential Startup Modes Selectable by a Single Pin
85-mΩ Internal High-Side MOSFETs
Current Mode Control
Internal Compensation
Pulse-by-Pulse Overcurrent Protection
Thermal Shutdown Protection at 148°C
14-Pin PowerPAD HTSSOP Package

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 2: –40°C to +105°C Ambient Operating Temperature
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C3B
4.5-V to 28-V Input Range
Output Voltage Range 0.8 V to 90% of Input Voltage
Output Current Up to 3 A
Fixed Switching Frequency: 600 kHz
Three Selectable Levels of Overcurrent Protection (Output 2)
0.8-V 1.5% Voltage Reference
2.1-ms Internal Soft Start
Dual PWM Outputs 180° Out-of-Phase
Ratiometric or Sequential Startup Modes Selectable by a Single Pin
85-mΩ Internal High-Side MOSFETs
Current Mode Control
Internal Compensation
Pulse-by-Pulse Overcurrent Protection
Thermal Shutdown Protection at 148°C
14-Pin PowerPAD HTSSOP Package

The TPS54386-Q1 are dual-output, non-synchronous buck converters capable of supporting 3-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.

With an internally-determined operating frequency, soft-start time, and control-loop compensation, these converters provide many features with a minimum of external components. Channel-1 overcurrent protection is set at 4.5 A, whereas the channel-2 overcurrent protection level is selected by connecting a pin to ground, to BP, or left floating. The setting levels are used to allow for scaling of external components for applications that do not need the full load capability of both outputs.

The outputs may be enabled independently, or may be configured to allow either ratiometric or sequential start-up sequencing. Additionally, the two outputs may be powered from different sources.

The TPS54386-Q1 are dual-output, non-synchronous buck converters capable of supporting 3-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.

With an internally-determined operating frequency, soft-start time, and control-loop compensation, these converters provide many features with a minimum of external components. Channel-1 overcurrent protection is set at 4.5 A, whereas the channel-2 overcurrent protection level is selected by connecting a pin to ground, to BP, or left floating. The setting levels are used to allow for scaling of external components for applications that do not need the full load capability of both outputs.

The outputs may be enabled independently, or may be configured to allow either ratiometric or sequential start-up sequencing. Additionally, the two outputs may be powered from different sources.

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	Type	Title		Date
*	Data sheet	3-A Dual Non-Synchronous Converter With Integrated Hi-Side MOSFET datasheet (Rev. A)		29 Apr 2012

Design & development

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Evaluation board

TPS54386EVM — TPS54386 13.2V Input, Dual 5V and 3.3V Output, 2A Evaluation Module

The TPS54386EVM evaluation module (EVM) is a dual non-synchronous buck converter providing fixed 5.0-V and 3.3-V output at up to 2 A each from a 12-V input bus. The EVM is designed to start up from a single supply, so no additional bias voltage is required for start-up. The module uses the (...)

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