500mA 4.3MHz Low IQ High Efficiency Synchronous Buck Converter
ページセクションへ移動：
概要
説明
The ISL9104, ISL9104A is a 500mA, 4. 3MHz step-down regulator, which is ideal for powering low-voltage microprocessors in compact devices such as PDAs and cellular phones. It is optimized for generating low output voltages down to 0. 8V. The supply voltage range is from 2. 7V to 6V allowing the use of a single Li+ cell, three NiMH cells or a regulated 5V input. It has guaranteed minimum output current of 500mA. A high switching frequency of 4. 3MHz pulse-width modulation (PWM) allows using small external components. Under light load condition, the device operates at low IQ skip mode with typical 20µA quiescent current for highest light load efficiency to maximize battery life, and it automatically switches to fixed frequency PWM mode under heavy load condition. The ISL9104, ISL9104A includes a pair of low ON-resistance P-Channel and N-Channel internal MOSFETs to maximize system efficiency and minimize the external component count. 100% duty-cycle operation allows less than 300mV dropout voltage at 500mA. The ISL9104, ISL9104A offers internal digital soft-start, enable for power sequence, overcurrent protection and thermal shutdown functions. In addition, the ISL9104, ISL9104A offers a quick bleeding function that discharges the output capacitor when the IC is disabled. The ISL9104, ISL9104A is offered in a 1. 6x1. 6mm µTDFN package. The complete converter occupies less than 0. 5CM2.
特長
- High Efficiency Integrated Synchronous Buck Regulator with up to 93% Efficiency
- 2.7V to 6.0V Supply Voltage
- 4.3MHz PWM Switching Frequency
- 500mA Guaranteed Output Current
- 3% Output Accuracy Over-Temperature and Line for Fixed Output Options
- 20µA Quiescent Supply Current in Skip Mode
- Less than 1µA Logic Controlled Shutdown Current
- 100% Maximum Duty Cycle for Lowest Dropout
- Ultrasonic Switching Frequency at Skip Mode to Prevent Audible Frequency Noise (For ISL9104A Only)
- Discharge Output Capacitor when Disabled
- Internal Digital Soft-Start
- Peak Current Limiting, Short Circuit Protection
- Over-Temperature Protection
- Chip Enable
- Small 6 Pin 1.6mmx1.6mm µTDFN Package
- Pb-Free (RoHS Compliant)
アプリケーション
アプリケーション
- Single Li-ion Battery-Powered Equipment
- Mobile Phones and MP3 Players
- PDAs and Palmtops
- WCDMA Handsets
- Portable Instruments
ドキュメント
|
|
日付 | |
|---|---|---|
| PDF 791 KB | データシート | |
| PDF 5.63 MB 英語 | カタログ | |
| PDF 414 KB | Product Advisory | |
| PDF 592 KB | アプリケーションノート | |
| PDF 205 KB | 製品変更通知 | |
| PDF 509 KB | アプリケーションノート | |
| PDF 397 KB | アプリケーションノート | |
| PDF 650 KB | アプリケーションノート | |
| PDF 387 KB | アプリケーションノート | |
| PDF 349 KB | アプリケーションノート | |
10 items
|
||
設計・開発
ソフトウェア／ツール
ソフトウェア／ツール
| Software title
|
Software type
|
会社名
|
|---|---|---|
| iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
|
Simulator | ルネサス |
1 item
|
||
ボード＆キット
モデル
ECADモデル
[製品選択]テーブル内の製品名をクリックするとSamacSysが提供する回路図シンボル、PCBフットプリント、3D CADモデルがご確認いただけます。 お探しのシンボルやモデルが見つからない場合、Webサイトから直接リクエストできます。
Processing table
Pkg. Type |
Carrier Type |
MOQ |
ご購入 / サンプル |
|
|---|---|---|---|---|
| 型名 | ||||
| uTDFN | Reel | 3000 | サンプルを入手, | |
| uTDFN | Reel | 250 | サンプルを入手, | |
| uTDFN | Reel | 3000 | サンプルを入手, | |
| uTDFN | Reel | 250 | サンプルを入手, | |
| uTDFN | Reel | 3000 | サンプルを入手, | |
| uTDFN | Reel | 250 | サンプルを入手, | |
| uTDFN | Reel | 3000 | サンプルを入手, | |
| uTDFN | Reel | 250 | サンプルを入手, | |
| uTDFN | Reel | 3000 | サンプルを入手, | |
| uTDFN | Reel | 3000 | サンプルを入手, | |
| uTDFN | Reel | 250 | サンプルを入手, | |
| uTDFN | Reel | 3000 | サンプルを入手, | |
| uTDFN | Reel | 250 | サンプルを入手, | |
| uTDFN | Reel | 3000 | サンプルを入手, | |
| uTDFN | Reel | 250 | サンプルを入手, |
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product
サポート
Renesas Samples
注文可能な製品番号を選択
| 発注型名 | サンプル |
|---|---|
| ISL9104AIRUAZ-T | Availability |
| ISL9104AIRUAZ-T7A | Availability |
| ISL9104AIRUBZ-T | Availability |
| ISL9104AIRUBZ-T7A | Availability |
| ISL9104AIRUCZ-T | Availability |
| ISL9104AIRUCZ-T7A | Availability |
| ISL9104AIRUDZ-T | Availability |
| ISL9104AIRUDZ-T7A | Availability |
| ISL9104AIRUFZ-T | Availability |
| ISL9104AIRUJZ-T | Availability |
| ISL9104AIRUJZ-T7A | Availability |
| ISL9104AIRUNZ-T | Availability |
| ISL9104AIRUNZ-T7A | Availability |
| ISL9104AIRUWZ-T | Availability |
| ISL9104AIRUWZ-T7A | Availability |