TPS40055

現行

用作源極/汲極的寬輸入 (8V-40V) 最高頻率 1MHz 的同步降壓控制器

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產品規格表

document-pdfAcrobat TPS4005x Wide-Input Synchronous Buck Controller datasheet (Rev. J) (英文) PDF | HTML

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LM25148

現行

具有超低 IQ 的 42-V 同步降壓 DC/DC 控制器 Improved EMI performance with QFN package and dual random spread spectrum.

TPS40055

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Topology

Buck Controller

Iout (max) (A)

20

Vin (max) (V)

40

Vin (min) (V)

8

Vout (max) (V)

35

Vout (min) (V)

0.7

Control mode

Voltage mode

Features

Enable, Frequency synchronization, Synchronous Rectification

Duty cycle (max) (%)

85

Iq (typ) (A)

0.0015

Number of phases

1

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Topology

Buck Controller

Iout (max) (A)

20

Vin (max) (V)

40

Vin (min) (V)

8

Vout (max) (V)

35

Vout (min) (V)

0.7

Control mode

Voltage mode

Features

Enable, Frequency synchronization, Synchronous Rectification

Duty cycle (max) (%)

85

Iq (typ) (A)

0.0015

Number of phases

1

Operating temperature range (°C)

-40 to 85

HTSSOP (PWP)

16

32 mm² (5 mm × 6.4 mm)

New products available
- LM5145 75-V synchronous buck controller with wide input voltage and duty cycle ranges
- LM5146 100-V synchronous buck DC/DC controller with wide duty-cycle range
Operating input voltage 8 V to 40 V
Input voltage feedforward compensation
< 1% internal 0.7-V reference
Programmable fixed-frequency up to 1-MHz voltage mode controller
Internal gate-drive outputs for high-side and synchronous N-channel MOSFETs
16-pin PowerPAD™ package (R_θJC = 2°C/W)
Thermal shutdown
Externally synchronizable
Programmable high-side sense short-circuit protection
Programmable closed-loop soft start
TPS40054 source only
TPS40055 source and sink
TPS40057 source and sink with V_O prebias

New products available
- LM5145 75-V synchronous buck controller with wide input voltage and duty cycle ranges
- LM5146 100-V synchronous buck DC/DC controller with wide duty-cycle range
Operating input voltage 8 V to 40 V
Input voltage feedforward compensation
< 1% internal 0.7-V reference
Programmable fixed-frequency up to 1-MHz voltage mode controller
Internal gate-drive outputs for high-side and synchronous N-channel MOSFETs
16-pin PowerPAD™ package (R_θJC = 2°C/W)
Thermal shutdown
Externally synchronizable
Programmable high-side sense short-circuit protection
Programmable closed-loop soft start
TPS40054 source only
TPS40055 source and sink
TPS40057 source and sink with V_O prebias

The TPS4005x is a family of high-voltage, wide-input (8 V to 40 V), synchronous, step-down controllers. The TPS4005x family offers design flexibility with a variety of user-programmable functions, including soft start, UVLO, operating frequency, voltage feedforward, high-side current limit, and loop compensation.

The TPS4005x uses voltage feedforward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients. Near-constant modulator gain with input variation eases loop compensation. The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation using an internal fault counter for longer duration overloads.

The new products, LM5145 and LM5146, offer reduced BOM cost, higher efficiency, and reduced solution size among many other features. Start a WEBENCH design with LM5145 and LM5146.

The TPS4005x is a family of high-voltage, wide-input (8 V to 40 V), synchronous, step-down controllers. The TPS4005x family offers design flexibility with a variety of user-programmable functions, including soft start, UVLO, operating frequency, voltage feedforward, high-side current limit, and loop compensation.

The TPS4005x uses voltage feedforward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients. Near-constant modulator gain with input variation eases loop compensation. The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation using an internal fault counter for longer duration overloads.

The new products, LM5145 and LM5146, offer reduced BOM cost, higher efficiency, and reduced solution size among many other features. Start a WEBENCH design with LM5145 and LM5146.

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LM25145

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重要文件	類型	標題	格式選項	日期
*	資料表	TPS4005x Wide-Input Synchronous Buck Controller datasheet (Rev. J)	PDF \| HTML	2022/6/22
	選擇指南	Power Management Guide 2018 (Rev. R)		2018/6/25
	使用指南	TSW2200 Multi-Output Power Supply Board (Rev. A)		2012/12/13
	應用說明	Power Topology - Buck Converter		2010/8/16
	應用說明	TPS4005x TPS4006x Effect of Programmable UVLO		2004/3/25

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TPS40055EVM-001 — 評估模組將 12V 匯流排轉換為 1.8V (15A)

In many modern electronic applications there is a growing demand for circuits to convert a12-V bus to digital voltages as low as, but not limited to 1.8 V. The current requirements can range from below 1 A to over 15 A. For high-efficiency and small circuit size the TPS40055 wide-input synchronous (...)

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TPS40055EVM-002 — 寬輸入範圍轉換器 2A 時提供 5V 輸出

The TPS40055EVM−002 wide range input dc-to-dc converter uses the TPS40055 synchronous rectifier controller to step down a 10-V to 40-V input to 5 V. The output current is 3 A with an input of 10 V and should be linearly derated to 2 A at VIN = 40 V. The TPS40055 is used because it offers a variety (...)