LM3203
- 2MHz (Typ.) PWM Switching Frequency
- Operates from a Single Li-Ion Cell (2.7V to 5.5V)
- Adjustable Output Voltage (0.8V to 3.6V)
- 500mA Maximum Load Capability (PWM and Bypass Mode)
- PWM / Forced Bypass Mode
- Low RDSON Bypass FET: 85mΩ (Typ.)
- High Efficiency (96% typ. at 3.6VIN, 3.2VOUT at 150mA)
- Fast Turn-On Time When Enabled (50µs typ.), 3GPP Compliant
- 10-Pin DSBGA Package
- Current Overload Protection
- Thermal Overload Protection
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The LM3203 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single Lithium-Ion cell. However, they may be used in many other applications. It steps down an input voltage of 2.7V to 5.5V to an adjustable output voltage of 0.8V to 3.6V. The output voltage is set using a VCON analog input and external resistor dividers for optimizing efficiency of the RF PA at various power levels.
The LM3203 offers 3 modes for mobile phones and similar RF PA applications. Fixed-frequency PWM mode minimizes RF interference. Bypass mode turns on an internal bypass switch to power the PA directly from the battery. Shutdown mode turns the device off and reduces battery consumption to 0.1µA (typ.).
The LM3203 is available in a 10-pin lead free DSBGA package. A high switching frequency (2MHz) allows use of tiny surface-mount components.
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 | LM3203 Step-Dwn DC-DC Converter w/Bypass Mode for CDMA/WCDMA RF Pwr Amp データシート (Rev. D) | 2013年 4月 2日 |
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
- 使用原材料
- 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