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AAT1217

Features: • VIN Operation Range: 0.5V to VOUT• VOUT Range: 2.5V to 5.5V• 100mA Output from a Single AA Cell Input• 400mA Output from a Dual AA Cell Input• High Efficiency: Up to 93% Efficiency• Low Start-Up Voltage: 0.85V Typical• Internal Synchronous Rect...

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SeekIC No. : 004261040 Detail

AAT1217: Features: • VIN Operation Range: 0.5V to VOUT• VOUT Range: 2.5V to 5.5V• 100mA Output from a Single AA Cell Input• 400mA Output from a Dual AA Cell Input• High Efficien...

AAT1217 Data Sheet

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Part Number:
AAT1217
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/7/15

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Product Details

Description



Features:

• VIN Operation Range: 0.5V to VOUT
• VOUT Range: 2.5V to 5.5V
• 100mA Output from a Single AA Cell Input
• 400mA Output from a Dual AA Cell Input
• High Efficiency: Up to 93% Efficiency
• Low Start-Up Voltage: 0.85V Typical
• Internal Synchronous Rectifier
- VOUT 4.5V: No External Schottky Diode
• Fixed Frequency Pulse Width Modulation
(PWM) Current-Mode Control Scheme with
Internal Compensation
• 1.2MHz Fixed Switching Frequency
• 1.2A Current Limit
• Light Load Pulse Skipping Mode Operation
• Low 80µA No Load Input Current
• Over-Current Protection
• EMI Reduction Anti-Ringing Control Circuitry
• Low Shutdown Current: <1.0µA
• -40°C to +85°C Ambient Temperature Range
• Low Profile (1mm) TSOT23-6 Package


Application

• Cellular and Smart Phones
• Digital Still and Video Cameras
• Microprocessors and DSP Core Supplies
• MP3 Player
• Portable Instruments
• Wireless and DSL Modems


Pinout

Connection Diagram


Specifications

Symbol Description
Value
Units
VIN
VSW
VFB, VSHDN
VOUT
TA
TSTORAGE
TLEAD
TJ		 Input Supply Voltage
SW Voltage
FB, SHDN Voltages
VOUT Voltage
Operating Ambient Temperature Range2
Storage Temperature Range
Lead Temperature (Soldering, 10s)
Operating Junction Temperature Range2
-0.3 to 6
-0.3 to 6
-0.3 to 6
-0.3 to 6
-40 to 85
-65 to 150
300
-40 to 150
V
V
V
V
°C
°C
°C
°C



Description

The AAT1217 a high efficiency, synchronous, fixed frequency, step-up converter designed for singlecell or dual-cell alkaline, NiMH, or NiCd batterypowered applications. The high 1.2MHz switching frequency and completely integrated control circuitry minimize the total solution footprint area while maintaining excellent regulation, ripple, and transient response throughout the full load range.

Pulse skipping mode operation and low quiescent current allow the AAT1217 to maintain high efficiency performance for light load and sleep mode conditions. With a 1.2A peak switch current limit, the AAT1217 is capable of delivering 100mA to the load from a single AA cell or up to 400mA from dual AA cells. The AAT1217 has a 0.85V start-up voltage with operation down to 0.5V.

The AAT1217 is available in a Pb-free, space-saving low profile (1mm) 6-pin TSOT23 package and is rated over the -40°C to +85°C ambient temperature range.




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