RAA211835

概要

The RAA211835 is a DC/DC asynchronous step-down (Buck) regulator that supports a 4.5V to 75V input voltage range and adjustable output voltage. It can deliver up to continuous 3A of continuous output current with premium load and line regulation performance.

The RAA211835 uses peak-current mode control architecture. Its PWM switching frequency is programmable to provide the best trade-off between transient response and efficiency. It also supports PFM operation to maximize light load efficiency, in addition to an external bias LDO input to further reduce power dissipation across the load range. The regulator also has an internal loop compensation circuit to reduce the external component count and BOM cost.

The RAA211835 provides useful functions such as internal or programmable soft-start and power good indicator. For safe operation, the RAA211835 also offers protection features such as cycle-by-cycle peak and valley current limit, input voltage UVLO, output voltage undervoltage (short-circuit) protection, and thermal shutdown.

Wide Vin operating range from 4.5V to 75V
Adjustable Vout from 0.8V to ~90% of Vin
Up to 3A of continuous output current
Default 400kHz or adjustable switching frequency from 200kHz to 800kHz
±1% load regulation accuracy from -40°C to 125°C, ±0.5% load regulation accuracy at 25°C
90μA typical quiescent current
Internal compensation, fixed 0.5ms SS for QFN and adjustable SS for HTSSOP
PFM operation at light load with integrated external bias LDO & Power Good indicator
Cycle-by-cycle peak and valley current limit, input voltage UVLO, output voltage undervoltage (short-circuit) protection and thermal shut down

Up to 75V distributed power supplies & general purposes POL
Telecommunication base station power supplies
Power tools
Surveillance
Portable mobility/robotic devices
Industrial power systems

ドキュメント


分類	タイトル	日時
データシート	RAA211835 Datasheet PDF 3.80 MB	2023年3月13日
1件

設計・開発

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1件

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分類	タイトル	日時
ソフトウェア／ツール－その他	RAA211630 Family Design Tool ログインしてダウンロード XLSX 312 KB	2022年11月9日
1件

RTKA211835DE0000BU

Evaluation

詳しくはこちら

RAA211835 Synchronous Buck Evaluation Board with 4.5V to 75V Input Range, 3.3V 3A Output (QFN version)

The RTKA211835DE0000BU board demonstrates and quickly evaluates the RAA211835 (QFN version), a DC/DC asynchronous step-down regulator with programmable switching...

主要ドキュメント:

RTKA211835DE0000BU Evaluation Board Manual

RTKA211835DE0010BU

Evaluation

詳しくはこちら

RAA211835 Synchronous Buck Evaluation Board with 4.5V to 75V Input Range, 3.3V 3A Output (HTSSOP version)

The RTKA211835DE0010BU board demonstrates and quickly evaluates the RAA211835 (HTSSOP version), a DC/DC asynchronous step-down regulator with programmable switching...

主要ドキュメント:

RTKA211835DE0010BU Evaluation Board Manual

ECADモデル

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Processing table

	Pkg. Type	Carrier Type	Moisture Sensitivity Level (MSL)	Price (USD) \| 1ku	ご購入 / サンプル
(2) アクティブ (0) Obsolete / NRND / LTB	QFN TSSOP-EP	Reel	3	最大値参考価格は、1,000個を基準としています。また、予告なく変更される場合があります。最小値参考価格は、1,000個を基準としています。また、予告なく変更される場合があります。	サンプルを入手購入/見積
型名	Logical Operator	Logical Operator	Logical Operator		Logical Operator
RAA211835GNP#HA0 circleアクティブ memoryPkg. Info view_in_ar PCB Symbol, Footprint, and 3D Model サンプル入手可能今すぐ購入する	QFN	Reel	3	1.968	サンプルを入手, 購入/見積
RAA211835GSP#HA0 circleアクティブ memoryPkg. Info spa Env. Documentation view_in_ar PCB Symbol, Footprint, and 3D Model サンプル入手可能今すぐ購入する	TSSOP-EP	Reel	3	1.968	サンプルを入手, 購入/見積

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ビデオ&トレーニング

Portfolio of 30V-75V Bucks Power the Highest-Precision Loads with Excellent Accuracy

The RAA211x family of bucks are highly scalable due to its unique pin-compatible wide Vin buck variants with integrated FETs that support up to 5A of continuous output current with premium load and line regulation performance. The RAA211835 supports 75V async buck operation of 3A loadings, while RAA211250/450/630/820 support sync buck operation of 30V 5A, 40V 5A, 60V 3A, 75V 2A respectively.

Video List

Portfolio of 30V-75V Bucks Power the Highest-Precision Loads with Excellent Accuracy

ニュース＆ブログ

The Evolution of Power Enhances Our Daily Lives

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2023年5月8日

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言語

Integrated FET 75V, 3A Asynchronous Buck Regulator with Internal Compensation and Programmable Frequency

概要

ドキュメント