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LTC3417EFE#PBF
DC/DC开关稳压器，同步降压，2输出，2.25至5.5V输入，TSSOP-20
产品概述
LTC3417 is a dual constant frequency, synchronous step-down DC/DC converter. Each output voltage is adjustable from 0.8V to 5V. Internal synchronous low RDS(ON) power switches provide high efficiency without the need for external schottky diodes. A user selectable mode input allows the user to trade off ripple voltage for light load efficiency. Burst Mode® operation provides high efficiency at light loads, while Pulse Skip mode provides low ripple noise at light loads. A phase mode pin allows the second channel to operate in-phase or 180° out-of-phase with respect to channel 1. Out-of-phase operation produces lower RMS current on VIN and thus lower RMS derating on the input capacitor. It is widely used in application such as PDAs/palmtop PCs, digital cameras, cellular phones, PC cards, wireless and DSL modems etc.
- 1.4A/800mA guaranteed minimum output current
- Oscillator frequency is 1.5MHz typical at (VFREQ = VIN)
- Low RDS(ON) internal switches, short-circuit protected
- Current mode operation for excellent line and load transient response
- Low dropout operation: 100% duty cycle, power good output
- Quiescent current in sleep mode is 125µA typical
- Ultralow shutdown current is 1µA maximum at (VRUN1 = VRUN2 = 0V)
- Phase pin selects 2nd channel phase relationship with respect to 1st channel
- Internal soft-start with individual run pin control
- Operating temperature is -40°C to 85°C, package style is 20-lead plastic TSSOP
产品信息
技术文档 (1)
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交付周期内有额外库存， 交付周期大约为 25-6-30
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69 英国 有库存，可在 5-6 个工作日内发货
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| 数量 | 价钱 (不含税) (含税) | 您所支付金额 (不含税) |
|---|---|---|
| 1+ | CNY87.81 CNY99.2253 | ( ) |
| 10+ | CNY76.83 CNY86.8179 | ( ) |
| 74+ | CNY73.14 CNY82.6482 | ( ) |
| 148+ | CNY69.44 CNY78.4672 | ( ) |
| 296+ | CNY66.21 CNY74.8173 | ( ) |
| 518+ | CNY61.85 CNY69.8905 | ( ) |
| 1036+ | CNY57.49 CNY64.9637 | ( ) |
| 数量 | 价钱 (不含税) (含税) | 您所支付金额 (不含税) |
|---|
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