MAX1703ESE+ by Analog Devices

1-Cell to 3-Cell, High Power (1.5A), Low-Noise, Step-Up DC-DC Converter


The MAX1703 is a high-efficiency, low-noise, step-up DC-DC converter intended for use in battery-powered wireless applications. It uses a synchronous-rectified pulse-width-modulation (PWM) boost topology to generate a 2.5V to 5.5V output from battery inputs, such as one to three NiCd/NiMH cells or one Li-Ion cell. The device includes a 2A, 75mΩ, N-channel MOSFET switch and a 140mΩ, P-channel synchronous rectifier. With its internal synchronous rectifier, the MAX1703 delivers up to 5% better efficiency than similar nonsynchronous converters. It also features a pulse-frequency-modulation (PFM) low-power mode to improve efficiency at light loads, and a 1µA shutdown mode. The MAX1703 comes in a 16-pin narrow SO package and includes an uncommitted comparator that generates a power-good or low-battery-warning output. It also contains a linear gain block that can be used to build a linear regulator. For lower-power outputs and a smaller package, refer to the MAX1700/MAX1701. For dual outputs (step-up plus linear regulator), refer to the MAX1705/MAX1706. For an on-board analog-to-digital converter, refer to the MAX848/MAX849. The MAX1703 evaluation kit is available to speed designs.

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Prices starting from US$4.55

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Features

Up to 95% Efficiency
Up to 1.5A Output
Fixed 5V or Adjustable Step-Up Output (2.5V to 5.5V)
0.7V to 5.5V Input Range
Low-Power Mode (300µW)
Low-Noise, Constant-Frequency Mode (300kHz)
Synchronizable Switching Frequency (200kHz to 400kHz)
1µA Logic-Controlled Shutdown
Power-Good Comparator
Uncommitted Gain Block

Specifications

VIN (V) (min) 0.7
VIN (V) (max) 5.5
VOUT1 (V) (min) 2.5
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 1.5
Switch Type Internal
Preset VOUT (V) 5
Output Adjust. Method Resistor
Synchronous Switching? Yes
IQ (mA) (typ) 0.065
Shutdown Mode Supply Current (µA) (typ) 0.1
Shutdown Mode Supply Current (µA) (max) 20
# DC-DC Outputs 1
Switching Frequency (kHz) 400
Package/Pins SOIC (N)/16
BudgetaryPrice (See Notes) 5.18


MAX1703ESE+ Semiconductors - ICs by Analog Devices

DC/DC CONV SYNC BOOST 400KHZ NSOIC-16

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Topology Synchronous Boost (Step Up)
Input Voltage Min 700mV
Input Voltage Max 5.5V
DC / DC Converter IC Case NSOIC
No. of Pins 16Pins
Output Current 1.5A
Output Voltage Nom. 5V
Switching Frequency 400kHz
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

1-Cell to 3-Cell, High Power ( | Analog Devices
Dc/Dc Conv, Sync Boost, 400Khz, Nsoic-16 | Newark Electronics
DC/DC CONV, SYNC BOOST, 400KHZ, NSOIC-16 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX1703ESE+ ?

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Is the MAX1703ESE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX1703ESE+ have stock available?

Authorised distributors including Analog Devices, Chip One Stop, CoreStaff, Newark Electronics and element14 have stock available or on a lead time for MAX1703ESE+ .

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