RAA211651

概要

The RAA211651 is an integrated 60V, 5A synchronous buck regulator with the Constant On-Time (COT) control scheme. It supports a wide range of input voltage from 4.5V to 60V and adjustable output voltage (0.8V to maximum duty cycle * V_IN). It also features a very low quiescent current, typically 10μA at 24V input. The modulation scheme used allows for high efficiency at all output load levels, especially at light-load conditions.

The RAA211651 is based on the COT modulator, where the on-time is determined by the input voltage level and the resistor connected to the SET pin. The switching frequency varies with the load. At light load, switching frequency drops reducing the switching losses. Also, with internal compensation, the regulator works in Diode Emulation mode reducing the losses at light-load conditions.

To limit inrush current during startup the RAA211651 has 2ms fixed internal soft-start time. It can also be programmed by an external capacitor. The RAA211651 also provides programmable startup delay time for sequencing purposes.

The RAA211651 provides comprehensive protections including undervoltage lockout, overcurrent (positive and negative), overvoltage, and over-temperature protections.

4.5V to 60V input supply range
0.8V reference voltage with 1% accuracy
Adjustable output voltage (0.8V to Dmax*V_IN)
Modulator: Constant On-Time (COT)
Low quiescent current
Excellent line and load regulation
Selectable internal or external control loop compensation
Variable load dependent switching frequency
Output Power-Good (PG) indicator
Programmable and optional fixed 2ms soft-start and soft-stop feature
Programmable startup and shutdown delay
Integrated LDO with bypass capability allowing for high-efficiency operation
Full protection: High-Side Overcurrent (HSOC) and low-side current protections in both directions, output Overvoltage Protection (OVP) and Output Undervoltage Protection (OUVP), input Undervoltage Lockout (UVLO), and Over-Temperature Protection (OTP)
Optional 3.3V default V_OUT using internal feedback
28 Ld 4mmx5mm QFN package

Industrial power supplies
48V industrial and computing PoL
Battery powered applications
ATM, vending, and gaming machines
Robotics
Programmable logic controllers
After-market automotive

ドキュメント


分類	タイトル	日時
データシート	RAA211651 Datasheet PDF 3.06 MB	2023年12月2日
マニュアル－ハードウェア	QCIOT-5APWRPOCZ Evaluation Board Manual PDF 11.99 MB	2024年5月29日
2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	RAA211651 Component Selection Calculator XLSX 662 KB	2021年11月24日
1件

RTKA211651DE0000BU

Evaluation

詳しくはこちら

RAA211651 Synchronous Buck Evaluation Board with 4.5V to 60V Input Range, 3.3V 5A Output

The RAA211651 is an integrated 60V, 5A synchronous buck regulator with constant on time modulating scheme. It supports a wide input voltage range from 4.5V to 60V and...

主要ドキュメント:

RTKA211651DE0000BU Evaluation Board Manual

QCIOT-5APWRPOCZ

Development

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RAA211651 60V 5A、DPMクイックコネクトIoTボード付き

QCIOT-5APWRPOCZボードは、ISL28023高精度デジタル・パワー・モニタ(DPM)を搭載したRAA211651 60V 5Aの低静止電流統合スイッチング・レギュレータの迅速な開発、試作を可能にします。 ISL28023 DPMは...

主要ドキュメント:

QCIOT-5APWRPOCZ Evaluation Board Manual

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	PLP	Pkg. Type	Carrier Type	Moisture Sensitivity Level (MSL)	Price (USD) \| 1ku	ご購入 / サンプル
(1) アクティブ (1) Obsolete / NRND / LTB	最大値 The duration date of a product in the Product Longevity Program (PLP). 最小値 The duration date of a product in the Product Longevity Program (PLP).	QFN	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		Logical Operator
RAA2116514GNP#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	2033 12月	QFN	Reel	3	2.434	サンプルを入手, 購入/見積

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言語

60V 5A Low Quiescent Current Integrated Switching Regulator

概要

ドキュメント