TPS65400-Q1

Name: TPS65400-Q1
Brand: TI
SKU: TPS65400-Q1
Price: 2.7 USD

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Automotive, 4.5 V to 18 V input, 4 A / 4 A / 2 A / 2 A synchronous quad converter with PMBus / I2C

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Data sheet

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TPS65400-Q1

ACTIVE

Data sheet

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Product details

Rating

Automotive

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

4

Vin (min) (V)

4.5

Vin (max) (V)

18

Switching frequency (min) (kHz)

275

Switching frequency (max) (kHz)

2200

Features

Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Enable, Frequency synchronization, I2C/PMBus, Light Load Efficiency, Over Current Protection, Phase Interleaving, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable

Control mode

current mode

Vout (min) (V)

0.8

Vout (max) (V)

16

Iq (typ) (µA)

8000

Duty cycle (max) (%)

92.5

Rating

Automotive

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

4

Vin (min) (V)

4.5

Vin (max) (V)

18

Switching frequency (min) (kHz)

275

Switching frequency (max) (kHz)

2200

Features

Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Enable, Frequency synchronization, I2C/PMBus, Light Load Efficiency, Over Current Protection, Phase Interleaving, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable

Control mode

current mode

Vout (min) (V)

0.8

Vout (max) (V)

16

Iq (typ) (µA)

8000

Duty cycle (max) (%)

92.5

VQFN (RGZ)

48

49 mm² 7 x 7

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: -40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C4B
Efficiency up to 95% for Each Switching Regulator
Switching Regulator Specifications:
- Input Voltage Range: 4.5 to 18 V
- Vout Range: 0.6 V-90%Vin
- SW1, SW2 Iout: 4-A Max
- SW3, SW4 Iout: 2-A Max
Pre-Bias Startup Algorithm Minimizes Voltage Dip During Startup
Internal Undervoltage Lockout (UVLO), Overcurrent Protection (OCP), Overvoltage Protection (OVP), and Overtemperature Protection (OTP)
Thermally-Enhanced 7-mm × 7-mm 48-Pin, 0.5-mm Pitch VQFN Package
Pin Accessible Features:
- Adjustable VOUT With External Feedback Resistors
- Sequencing Control Through Precision Enable Pins for Each Switcher
- Resistor Adjustable PWM Switching Frequency from 275 kHz to 2.2 MHz
- Clock Sync Input and Clock Output
- Soft-Start Delay Through External Capacitor
- Current Sharing Between SW1 and SW2 and Between SW3 and SW4 Allows Support of Higher Current Needs if Required
PMBus Runtime Control and Status
- Runtime Voltage Positioning Through Adjustment of V_REF
- Enable and Disable of Each Switcher
- Fault and Status Monitoring
User-Configurable PMBus / I²C Options, Saved in EEPROM
- Power Supply Turn-On and Turn-Off Sequencing
- Sequencing can be Based on Fixed Time Delays or PGOOD Dependence
- Initial Voltage Positioning Through VREF Configuration
- PWM Frequency Adjustment for Each Switcher
- Individual PWM Phase Alignment for Each Switcher to Minimize Ripple and Capacitor Size
- Adjustable Current Limit on Each Regulator Enables Size and Cost Optimization of Inductors
- Soft-Start Time

All trademarks are the property of their respective owners. All trademarks are the property of their respective owners.

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: -40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C4B
Efficiency up to 95% for Each Switching Regulator
Switching Regulator Specifications:
- Input Voltage Range: 4.5 to 18 V
- Vout Range: 0.6 V-90%Vin
- SW1, SW2 Iout: 4-A Max
- SW3, SW4 Iout: 2-A Max
Pre-Bias Startup Algorithm Minimizes Voltage Dip During Startup
Internal Undervoltage Lockout (UVLO), Overcurrent Protection (OCP), Overvoltage Protection (OVP), and Overtemperature Protection (OTP)
Thermally-Enhanced 7-mm × 7-mm 48-Pin, 0.5-mm Pitch VQFN Package
Pin Accessible Features:
- Adjustable VOUT With External Feedback Resistors
- Sequencing Control Through Precision Enable Pins for Each Switcher
- Resistor Adjustable PWM Switching Frequency from 275 kHz to 2.2 MHz
- Clock Sync Input and Clock Output
- Soft-Start Delay Through External Capacitor
- Current Sharing Between SW1 and SW2 and Between SW3 and SW4 Allows Support of Higher Current Needs if Required
PMBus Runtime Control and Status
- Runtime Voltage Positioning Through Adjustment of V_REF
- Enable and Disable of Each Switcher
- Fault and Status Monitoring
User-Configurable PMBus / I²C Options, Saved in EEPROM
- Power Supply Turn-On and Turn-Off Sequencing
- Sequencing can be Based on Fixed Time Delays or PGOOD Dependence
- Initial Voltage Positioning Through VREF Configuration
- PWM Frequency Adjustment for Each Switcher
- Individual PWM Phase Alignment for Each Switcher to Minimize Ripple and Capacitor Size
- Adjustable Current Limit on Each Regulator Enables Size and Cost Optimization of Inductors
- Soft-Start Time

All trademarks are the property of their respective owners. All trademarks are the property of their respective owners.

The TPS65400-Q1 is an integrated PMU optimized for applications requiring small form factor and high power conversion efficiency, enabling small space-constrained equipment with high ambient operating temperature without cooling. It provides high-power efficiency at a system level by enabling a single stage conversion from an intermediate distribution bus with an optimized combination of regulators.

TPS65400-Q1 implements a PMBus-I²C-compatible digital interface. It helps Core Chip optimize system performance by runtime changing regulated voltage, power sequence, phase interleaving, operating frequency, read back operating status, and so forth.

The TPS65400-Q1 consists of four high-current buck switching regulators (SW1, SW2, SW3, and SW4) with integrated FETs. The switching power supplies are intended for powering high-current digital circuits such as the processor, FPGA, ASIC, memory, and digital I/Os. SW1 and SW2 support 4 A each, and SW3 and SW4 support 2 A each. Each regulator’s switching frequency is independently adjustable up to 2.2 MHz.

Current limit programmability on each switcher enables optimization of inductor ratings for a particular application configuration not requiring the maximum current capability.

The TPS65400-Q1 can be powered from a single-input voltage rail between 4.5 and 18 V, making it suitable for applications running off a 5- or 12-V intermediate power distribution bus.

Sequencing requirements can be met using the individual enable terminals or by programming the sequence through the I²C bus into the onboard EEPROM. Output voltages can be set through external resistor networks and VREF can be programmed from 0.6 to 1.87 V in 10-mV steps. All control and status info can be accessed through a PMBus-compatible I²C bus.

The TPS65400-Q1 provides a high level of flexibility for monitoring and control through the I²C bus while providing the option of programmability through the use of external components and voltage levels for systems not using I²C.

The TPS65400-Q1 is an integrated PMU optimized for applications requiring small form factor and high power conversion efficiency, enabling small space-constrained equipment with high ambient operating temperature without cooling. It provides high-power efficiency at a system level by enabling a single stage conversion from an intermediate distribution bus with an optimized combination of regulators.

TPS65400-Q1 implements a PMBus-I²C-compatible digital interface. It helps Core Chip optimize system performance by runtime changing regulated voltage, power sequence, phase interleaving, operating frequency, read back operating status, and so forth.

The TPS65400-Q1 consists of four high-current buck switching regulators (SW1, SW2, SW3, and SW4) with integrated FETs. The switching power supplies are intended for powering high-current digital circuits such as the processor, FPGA, ASIC, memory, and digital I/Os. SW1 and SW2 support 4 A each, and SW3 and SW4 support 2 A each. Each regulator’s switching frequency is independently adjustable up to 2.2 MHz.

Current limit programmability on each switcher enables optimization of inductor ratings for a particular application configuration not requiring the maximum current capability.

The TPS65400-Q1 can be powered from a single-input voltage rail between 4.5 and 18 V, making it suitable for applications running off a 5- or 12-V intermediate power distribution bus.

Sequencing requirements can be met using the individual enable terminals or by programming the sequence through the I²C bus into the onboard EEPROM. Output voltages can be set through external resistor networks and VREF can be programmed from 0.6 to 1.87 V in 10-mV steps. All control and status info can be accessed through a PMBus-compatible I²C bus.

The TPS65400-Q1 provides a high level of flexibility for monitoring and control through the I²C bus while providing the option of programmability through the use of external components and voltage levels for systems not using I²C.

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