TPS55386

Name: TPS55386
Brand: TI
SKU: TPS55386
Price: 1.8 USD

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Abwärtswandler, 4,5 bis 28 V Eingangsspannung, zweifacher Ausgang 3 A, 600 kHz, mit externer Kompens

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Datenblatt

document-pdfAcrobat TPS5538X 3-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET datasheet (Englisch)

TPS55386

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Datenblatt

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Produktdetails

Iout (max) (A)

3

Vin (min) (V)

4.5

Vin (max) (V)

28

Topology

Buck

Type

Converter

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

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.0018

Iout (max) (A)

3

Vin (min) (V)

4.5

Vin (max) (V)

28

Topology

Buck

Type

Converter

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

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.0018

HTSSOP (PWP)

16

32 mm² 5 x 6.4

4.5-V to 28-V Input Range
Output Voltage 0.8 V to 90% of Input Voltage
Output Current Up to 3 A
Two Fixed Switching Frequency Versions:
- TPS55383: 300 kHz
- TPS55386: 600 kHz
Three Selectable Levels of Overcurrent Protection (Output 2)
0.8-V 1.75% Voltage Reference
2.1-ms Internal Soft Start
Dual PWM Outputs 180° Out-of-Phase
Ratiometric or Sequential Startup Modes
Configurable as Dual Output or Two-Channel Single Output Multiphase for 6 amp Capability
85-Ω Internal High-Side MOSFETs
Current Mode Control with External Compensation
Pulse-by-Pulse Overcurrent Protection
Thermal Shutdown Protection at +148°C
16-Pin PowerPAD HTSSOP package
APPLICATIONS
- Set Top Box
- Digital TV
- Power for DSP
- Consumer Electronics

PowerPAD Is a trademark of Texas Instruments.
All other trademarks are the property of their respective ownersPower.

4.5-V to 28-V Input Range
Output Voltage 0.8 V to 90% of Input Voltage
Output Current Up to 3 A
Two Fixed Switching Frequency Versions:
- TPS55383: 300 kHz
- TPS55386: 600 kHz
Three Selectable Levels of Overcurrent Protection (Output 2)
0.8-V 1.75% Voltage Reference
2.1-ms Internal Soft Start
Dual PWM Outputs 180° Out-of-Phase
Ratiometric or Sequential Startup Modes
Configurable as Dual Output or Two-Channel Single Output Multiphase for 6 amp Capability
85-Ω Internal High-Side MOSFETs
Current Mode Control with External Compensation
Pulse-by-Pulse Overcurrent Protection
Thermal Shutdown Protection at +148°C
16-Pin PowerPAD HTSSOP package
APPLICATIONS
- Set Top Box
- Digital TV
- Power for DSP
- Consumer Electronics

PowerPAD Is a trademark of Texas Instruments.
All other trademarks are the property of their respective ownersPower.

The TPS55383 and TPS55386 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 and soft start time, these converters provide many features with a minimum of external components. The outputs of the two error amplifiers are accessible allowing user optimization of the feedback loop under a wide range of output filter characteristics. Channel 1 overcurrent protection is set at 4.5 A, while 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 configured to allow either ratiometric or sequential startup sequencing. Additionally, the two outputs may be powered from different sources.

The TPS55383 and TPS55386 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 and soft start time, these converters provide many features with a minimum of external components. The outputs of the two error amplifiers are accessible allowing user optimization of the feedback loop under a wide range of output filter characteristics. Channel 1 overcurrent protection is set at 4.5 A, while 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 configured to allow either ratiometric or sequential startup sequencing. Additionally, the two outputs may be powered from different sources.

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Alle anzeigen 3

	Typ	Titel	Datum
*	Data sheet	TPS5538X 3-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET datasheet	26 Sep 2008
	Selection guide	Power Management Guide 2018 (Rev. R)	25 Jun 2018
	EVM User's guide	Using the TPS55386EVM-363 A 12V Input 5.0V & 3.3V Output 3A Non-Sync Buck Conver	07 Nov 2008

Design und Entwicklung

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Evaluierungsplatine

TPS55386EVM-363 — TPS55386 13,2 V-Eingang, 3,3 und 5 V-Doppelausgang, 3 A – Evaluierungsmodul

The TPS55383EVM-363 evaluation module (EVM) is a dual non-synchronous buck converter providing fixed 5.0V and 3.3V output at up to 3A 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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