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AAT1179
AAT1179 - Brand New ANALOGIC IC Chips
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
General Description
The AAT1171 SwitchReg dynamically controls the operating voltage of a WCDMA or
CDMA power amplifier inside single-cell, lithium-ion battery-powered systems.
The AAT1171 outputs a voltage between 0.6V and 3.6V, thereby optimizing the
amplifier efficiency at both low and high transmit levels.
The AAT1171 output voltage is controlled via an analog signal from the
baseband processor. It can deliver 600mA of continuous load current while
maintaining a low 45µA of no load quiescent current. The 2MHz switching
frequency minimizes the size of external components while keeping switching
losses low. To further improve system efficiency, an 85mΩ bypass MOSFET
transistor is also included to allow the PA to be powered directly from the
battery.
The AAT1171 maintains high efficiency thoughout the entire load range in Light
Load (LL) mode, and can be forced into Pulse Wide Modulation (PWM) mode for
low noise operation or can be synchronized to an external clock.
The AAT1171 is available in a Pb-free, space-saving TDFN33-12 package and is
rated over the -40°C to +85°C temperature range.
Features
• VIN Range: 2.7V to 5.5V
• Variable Output Voltage: 0.6V to 3.6V
• 600mA Output Current
• DAC Input: 0.2V to 1.2V
• High Output Accuracy: ±3%
• 45µA No Load Quiescent Current
• Internal Soft Start Limits Startup Current and
Output Voltage Overshoot
• Synchronizable to External 19.8MHz System
Clock
• Over-Temperature and Current Limit Protection
• Integrated 85mΩ Bypass MOSFET
• 2MHz Operation
• PWM/LL Control with Override
• Fast Start-Up:
— 50µs (AAT1171-4, AAT1171-5)
— 150µs (AAT1171-1)
• 100% Duty Cycle Operation
• <30µs Output Voltage Response Time
• 3x3mm 12-Pin TDFN Package
• Temperature Range: -40°C to +85°C
Applications
• WCDMA or CDMA PA in Cellular Phones,
Smartphones, Feature Phones, etc.
• Express Card
• PCMCIA Data Cards
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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