Product Summary

The MAX1702BETX+ 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 MAX1702BETX+ 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 MAX1702BETX+ has an internal 1A N-channel MOSFET switch. The applications of the MAX17015A include Digital Cordless Phones, Personal Communicators, Palmtop Computers, Hand-Held Instruments, PCS Phones, Wireless Handsets and Two-Way Pagers.

Parametrics

MAX1702BETX+ 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

MAX1702BETX+ features: (1)High Switching Frequency (1.2MHz); (2)Controlled Inductor Current-Ripple Architecture Reduced BOM Cost Small Inductor and Output Capacitors; (3)±0.4% Accurate Charge Voltage; (4)±2.5% Accurate Input-Current Limiting; (5)±3% Accurate Charge Current; (6)Single-Point Compensation; (7)Monitor Outputs for ±2.5% Accurate Input Current Limit; (8)Analog/PWM Adjustable Charge-Current Setting; (9) Battery Voltage Adjustable for 3 and 4 Cells; (10)Adjustable Battery Voltage (4.2V to 4.4V/Cell); (11)Cycle-by-Cycle Current Limit; (12)Programmable Charge Current < 5A; (13)Automatic System Power Source Selection with n-Channel MOSFET; (14)Internal Boost Diode; (15)+8V to +26V Input-Voltage Range.

Diagrams

MAX1702BETX+ block diagram

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MAX1702BETX+
MAX1702BETX+

Maxim Integrated Products

PMIC Solutions Triple-Output for MPU-Based System

Data Sheet

Negotiable 
MAX1702BETX+T
MAX1702BETX+T

Maxim Integrated Products

PMIC Solutions Triple-Output for MPU-Based System

Data Sheet

Negotiable