TPS59124
- High Efficiency, Low-Power Consumption, Shutdowns to <1 µA
- Fixed Frequency Emulated On-Time Control, Frequency Selectable From Three Options
- D-CAP Mode Enables Fast Transient Response
- Auto-Skip Mode
- Less Than 1% Initial Reference Accuracy
- Low Output Ripple
- Wide Input Voltage Range: 3 V to 28 V
- Output Voltage Range: 0.76 V to 5.5 V
- Low-Side RDS(on) Loss-less Current Sensing
- Adaptive Gate Drivers With Integrated Boost Diode
- Internal 1.2-ms Voltage-Servo Soft Start
- Power-Good Signals for Each Channel With Delay Timer
- Output Discharge During Disable, Fault
- APPLICATIONS
- I/O and Low Voltage System Bus in Embedded Computing Systems
The TPS59124 is a dual, adaptive on-time D-CAP mode synchronous buck controller. This device enables system designers to cost effectively complete the suite of embedded computer power bus regulators with the absolute lowest external component count and lowest standby consumption. The fixed-frequency emulated adaptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency operation at light load for high-efficiency down to milliampere range. The main control loop for the TPS59124 uses the D-CAP mode that optimized for low-ESR output capacitors such as POSCAP or SP-CAP promises fast transient response with no external compensation. Simple and separate power good signals for each channel allow flexibility of power sequencing. The device provides convenient and efficient operation with supply input voltages (V5IN, V5FILT) ranging from 4.5 V to 5.5 V, conversion voltages (drain voltage for the synchronous high-side MOSFET) from 3 V to 28 V and output voltages from 0.76 V to 5.5 V.
The TPS59124 is available in 24-pin QFN package specified from –40°C to 85°C ambient temperature range.
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 | Dual Synchronous Step-Down Controller for Low Voltage Power Rails in Embedded C データシート | 2010年 4月 30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