Product Summary
The MAX1705EEE is a high-efficiency, low-noise, step-up DC-DC converter with an auxiliary linear-regulator output. The device is intended for use in battery-powered wireless applications. The MAX1705EEE uses a synchronous rectifier pulse-width-modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from battery inputs, such as 1 to 3 NiCd/NiMH cells or 1 Li-Ion cell. The MAX1705EEE has an internal 1A N-channel MOSFET switch. The applications of the MAX1705EEE include Digital Cordless Phones, Personal Communicators, Palmtop Computers, Hand-Held Instruments, PCS Phones, Wireless Handsets and Two-Way Pagers.
Parametrics
MAX1705EEE absolute maximum ratings: (1)ONA, ONB, FBLDO, OUT, POUT to GND: -0.3V to 6V; (2)PGND to GND:±0.3V; (3)POUT to OUT:±0.3V; (4)LX to PGND: -0.3V to (VPOUT + 0.3V); (5)CLK/SEL, REF, FB, TRACK, LDO, LBN, LBP, LBO to GND: -0.3V to (VOUT + 0.3V); (6)LDO Short Circuit: Continuous; (7)Continuous Power Dissipation: 696mW; (8)Operating Temperature Range: -40℃ to +85℃; (9)Junction Temperature: +150℃; (10)Storage Temperature Range: -65℃ to +160℃; (11)Lead Temperature (soldering, 10sec): +300℃.
Features
MAX1705EEE features: (1)Up to 96% Efficiency; (2)1.1VIN Guaranteed Start-Up; (3)Up to 850mA Output; (4)Step-Up Output (2.5V to 5.5V adjustable); (5)Linear Regulator (1.25V to 5.0V adjustable); (6)PWM/PFM Synchronous-Rectified Topology; (7)300kHz PWM Mode or Synchronizable; (8)1μA Shutdown Mode; (9)Voltage Monitor; (10)Pushbutton On/Off Control.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
Quantity | |||||||||||||
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MAX1705EEE-T |
Maxim Integrated Products |
DC/DC Switching Converters 1-3 Cell Step-Up w/Linear Regulator |
Data Sheet |
Negotiable |
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MAX1705EEE+T |
Maxim Integrated Products |
DC/DC Switching Converters 1-3 Cell Step-Up w/Linear Regulator |
Data Sheet |
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MAX1705EEE+ |
Maxim Integrated Products |
DC/DC Switching Converters 1-3 Cell Step-Up w/Linear Regulator |
Data Sheet |
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MAX1705EEE |
Maxim Integrated Products |
DC/DC Switching Converters 1-3 Cell Step-Up w/Linear Regulator |
Data Sheet |
Negotiable |
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