TPS55383

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具有外部补偿的 4.5V 至 28V 输入、双通道 3A 输出、300kHz 降压转换器

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数据表

document-pdfAcrobat TPS5538X 3-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET 数据表 (英语)

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TPS62933

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采用 SOT-583 封装的 3.8V 至 30V、3A、200kHz 至 2.2MHz、低 IQ 同步降压转换器 Wider Vin, higher frequency and lower IQ.

TPS55383

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产品详情

Rating

Catalog

Topology

Buck

Iout (max) (A)

3

Vin (max) (V)

28

Vin (min) (V)

4.5

Vout (max) (V)

25.2

Vout (min) (V)

0.8

Features

Enable, Phase interleaving

Control mode

current mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.0018

Duty cycle (max) (%)

90

Rating

Catalog

Topology

Buck

Iout (max) (A)

3

Vin (max) (V)

28

Vin (min) (V)

4.5

Vout (max) (V)

25.2

Vout (min) (V)

0.8

Features

Enable, Phase interleaving

Control mode

current mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.0018

Duty cycle (max) (%)

90

HTSSOP (PWP)

16

32 mm² (5 mm × 6.4 mm)

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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顶层文档	类型	标题	格式选项	下载最新的英语版本		日期
*	数据表	TPS5538X 3-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET 数据表				2008-9-26

TPS55383

具有外部补偿的 4.5V 至 28V 输入、双通道 3A 输出、300kHz 降压转换器

可提供此产品的更新版本

功能与比较器件相似。

TPS55383

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