LM60440

現行

採用增強型 EMI QFN 封裝，具有可潤濕側翼和外部墊片的 36-V、4-A 同步轉換器

立即訂購

產品規格表

document-pdfAcrobat LM604x0 3.8-V to 36-V, 3-A, and 4-A Ultra-Small Synchronous Step-Down Converter datasheet (Rev. A) (英文) PDF | HTML

LM60440

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Topology

Buck

Iout (max) (A)

4

Vin (max) (V)

36

Vin (min) (V)

3.8

Vout (max) (V)

24

Vout (min) (V)

1

Features

Enable, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO adjustable, Wettable flanks package

Control mode

current mode

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.000024

Duty cycle (max) (%)

98

Sector

Test & measurement

Rating

Catalog

Topology

Buck

Iout (max) (A)

4

Vin (max) (V)

36

Vin (min) (V)

3.8

Vout (max) (V)

24

Vout (min) (V)

1

Features

Enable, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Synchronous Rectification, UVLO adjustable, Wettable flanks package

Control mode

current mode

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.000024

Duty cycle (max) (%)

98

Sector

Test & measurement

WQFN-FCRLF (RPK)

13

6 mm² (0 mm × 0 mm)

Functional Safety-Capable
- Documentation available to aid functional safety system design
Low EMI and switching noise
- Meets CISPR22 class 5 standard
- Enhanced QFN package minimizes parasitic inductance and switch node ringing
Configured for rugged industrial applications
- Standard QFN footprint: single large thermal pad and all pins accessible from perimeter
- Pin compatible variants:
  - LM60440 (36 V, 4 A)
  - LM60430 (36 V, 3 A)
- Junction temperature range –40°C to +150°C
- Frequency: 400 kHz, 1 MHz
- Output voltage range: 1 V to 24 V
High efficiency power conversion at all loads
- Peak efficiency > 95%
- 90% PFM efficiency at 10-mA, 12 V_IN, 5 V_OUT
- Low operating quiescent current of 25 µA
Create a custom design using the LM60440 with the WEBENCH^® Power Designer

Functional Safety-Capable
- Documentation available to aid functional safety system design
Low EMI and switching noise
- Meets CISPR22 class 5 standard
- Enhanced QFN package minimizes parasitic inductance and switch node ringing
Configured for rugged industrial applications
- Standard QFN footprint: single large thermal pad and all pins accessible from perimeter
- Pin compatible variants:
  - LM60440 (36 V, 4 A)
  - LM60430 (36 V, 3 A)
- Junction temperature range –40°C to +150°C
- Frequency: 400 kHz, 1 MHz
- Output voltage range: 1 V to 24 V
High efficiency power conversion at all loads
- Peak efficiency > 95%
- 90% PFM efficiency at 10-mA, 12 V_IN, 5 V_OUT
- Low operating quiescent current of 25 µA
Create a custom design using the LM60440 with the WEBENCH^® Power Designer

The LM604x0 regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for rugged industrial applications. The LM60430 drives up to 3-A of load current, and the LM60440 is industry’s smallest 4A step-down converter.

The LM604x0 is available in an ultra-miniature WQFN package with wettable flanks and a standard QFN pin-out with a thermal pad to enhance thermal performance. This enhanced QFN package features extremely small parasitic inductance and resistance, enabling very high efficiency while minimizing switch node ringing and dramatically reducing EMI.

The LM604x0 uses peak-current-mode control to automatically fold back frequency at light load to ensure exceptional efficiency across the entire load range. The low power dissipation paired with a thermally optimized QFN package enables a power dense solution size. In addition the device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LM604x0 are designed to simplify implementation for a wide range of end equipment.

This device is also available in an AEC-Q100-qualified version.

The LM604x0 regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for rugged industrial applications. The LM60430 drives up to 3-A of load current, and the LM60440 is industry’s smallest 4A step-down converter.

The LM604x0 is available in an ultra-miniature WQFN package with wettable flanks and a standard QFN pin-out with a thermal pad to enhance thermal performance. This enhanced QFN package features extremely small parasitic inductance and resistance, enabling very high efficiency while minimizing switch node ringing and dramatically reducing EMI.

The LM604x0 uses peak-current-mode control to automatically fold back frequency at light load to ensure exceptional efficiency across the entire load range. The low power dissipation paired with a thermally optimized QFN package enables a power dense solution size. In addition the device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LM604x0 are designed to simplify implementation for a wide range of end equipment.

This device is also available in an AEC-Q100-qualified version.

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重要文件	類型	標題	格式選項	日期
*	資料表	LM604x0 3.8-V to 36-V, 3-A, and 4-A Ultra-Small Synchronous Step-Down Converter datasheet (Rev. A)	PDF \| HTML	2020/6/18
	應用說明	Enhanced HotRod QFN Package: Industry-Best Size with Low EMI (Rev. A)	PDF \| HTML	2021/8/17
	功能安全資訊	LM604x0 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA	PDF \| HTML	2020/10/1

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LM60440AQEVM — 36-V、4-A、2x3-mm 同步降壓轉換器評估模組

LM60440AQEVM 評估模組 (EVM) 可協助設計人員評估 LM60440-Q1 廣泛輸入降壓穩壓器的運作及性能。LM60440-Q1 為一款簡單易用的同步降壓 DC/DC 轉換器，可從最高 36 V 的輸入電壓驅動高達 4 A 的負載電流。LM60440-Q1 採用熱性能與雜訊均最佳化的 2x3 mm QFN 封裝，提供極小的解決方案尺寸，可解決 EMI 與熱性能設計問題。

使用指南: PDF

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