LM3262
- Operates from a Single Li-Ion Cell (2.5 V to 5.5 V)
- 6-MHz (Typical) PWM Switching Frequency
- Adjustable Output Voltage (0.4 V to 3.6 V)
- 800-mA Maximum Load Capability (up to 1 A in Bypass Mode)
- High Efficiency (93% Typical at 3.8 VIN, 3.4 VOUT at 500 mA)
- Automatic ECO/PWM/BP Mode Change
- Current and Thermal Overload Protection
- Multi-Function VCON Pin
(Eliminates Need for Separate BPEN Control) - Soft-Start Function
- Small Chip Inductor in 0805 (2012) Case Size
- 25-µA (Typical) IQ in Sleep Mode
- 5-µs (Typical) Rise Time and Fall Time for
2-V Step - 9-Pin DSBGA Package
The LM3262 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single lithium-ion cell; however, it may be used in many other applications such as USB-powered portable applications. The device 2.5-V to 5.5-V input voltage can be stepped down to an adjustable output voltage range from 0.4 V to 3.6 V. Output voltage is set using a VCON analog input which enables improved RF-stage PA efficiencies.
The LM3262 offers five modes of operation. In pulse width modulation (PWM) mode the device operates at a fixed frequency of 6 MHz (typical), which minimizes RF interference at medium-to-low loads. At light load, the device enters into ECO mode automatically and operates with reduced switching frequency. In ECO mode, the quiescent current is reduced and extends the battery life. Shutdown mode turns the device off and reduces battery consumption to 0.1 µA (typical). At low-battery condition, bypass mode reduces the voltage dropout to less than 50 mV (typical). The device also features a sleep mode.
The LM3262 is available in a 9-pin, lead-free DSBGA package. A high-switching frequency (6 MHz) allows use of only three tiny surface-mount components: one inductor and two ceramic capacitors.
For all available packages, see the orderable addendum at the end of the data sheet.技術資料
| 種類 | タイトル | 最新の英語版をダウンロード | 日付 | |||
|---|---|---|---|---|---|---|
| * | データシート | LM3262 6-MHz, 800-mA Miniature, Adjustable, Step-Down DC-DC Converter With Auto Bypass for RF Power Amplifiers データシート (Rev. O) | PDF | HTML | 2015年 12月 30日 | ||
| セレクション・ガイド | 電源 IC セレクション・ガイド 2018 (Rev. R 翻訳版) | 英語版 (Rev.R) | 2018年 9月 13日 | |||
| ユーザー・ガイド | LM3262 DSBGA Evaluation Board (Rev. B) | 2013年 4月 30日 |
設計と開発
その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。
| パッケージ | ピン数 | ダウンロード |
|---|---|---|
| DSBGA (YFQ) | 9 | オプションの表示 |
購入と品質
- RoHS
- REACH
- デバイスのマーキング
- リード端子の仕上げ / ボールの原材料
- MSL 定格 / ピーク リフロー
- MTBF/FIT 推定値
- 材質成分
- 認定試験結果
- 継続的な信頼性モニタ試験結果
- ファブの拠点
- 組み立てを実施した拠点