MAX8887EZK18+TG05 - Maxim Integrated - IC Chips
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Description
The MAX8887EZK18+TG05 is a power-management IC designed for wireless and satellite handsets. It is suitable for mobile devices that operate from 3 to 6-cell NiCd/NiMH batteries or from 1 or 2-cell Li-Ion batteries. It includes a high-efficiency, step-down DC-DC converter, a regulated 5V charge pump, and four linear regulators. The regulators supply power to the SIM, LCD, BB, DSP, and RF sections of a cellular telephone handset. The IC's output voltages are adjustable by internal 4-bit DACs, programmable through the I2C-compatible serial interface. Additionally, it features a pushbutton on/off scheme that activates a 5µA low-power shutdown mode, low-battery detector output, and an internal start-up timer.
Specifications and features
- 90% Efficient, 500mA Step-Down Converter
- Two 100mA DAC-Controlled LDOs, One 200mA DAC-Controlled LDO, and One 20mA DAC-Controlled LDO
- 3 to 6-Cell NiCd or NiMH Operation and 1 or 2-Cell Li-Ion Operation
- +2.7V to +12V Input Voltage Range
- 250µA Standby (PFM) Quiescent Current and 5µA Shutdown Current
- I2C-Compatible Serial Interface and Selectable 375kHz, 535kHz, 670kHz, 925kHz (or Synchronizable) Switching Frequency
- Power-On Reset and Start-Up Timer
- Thermal Overload Protection
- Pushbutton On/Off Control and Space-Saving 32-Pin TQFP Package (7mm x 7mm)
Application Scenarios
- Satellite Phones
- Private Mobile Radio (PMR)
- Wireless Handsets
- GSM Cellular/PCS Telephones
Comparison
Advantages- Highly efficient
- Adjustable output voltages
- Low power shutdown mode
- Low-battery detector output and internal start-up timer
- Pushbutton on/off control
- Thermal overload protection
Disadvantages- Not suitable for devices that require more than 500mA
- Only compatible with specific switching frequencies
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
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Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
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How to Buy:
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Popular parts of the same kind
- Datasheet: Download MAX8887EZK18+TG05
- Chipdatas Part: CD86-MAX8887EZK18+TG05
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/01 19:43 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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