MAX1706EEE+ by Analog Devices

1 to 3 Cell, High Current, Low-Noise, Step-Up DC-DC Converters with Linear Regulator


The MAX1705/MAX1706 are high-efficiency, low-noise, step-up DC-DC converters with an auxiliary linear-regulator output. These devices are intended for use in battery-powered wireless applications. They use 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 MAX1705 has an internal 1A n-channel MOSFET switch. The MAX1706 has a 0.5A switch. Both devices also have a built-in low-dropout linear regulator that delivers up to 200mA. With an internal synchronous rectifier, the MAX1705/MAX1706 deliver 5% better efficiency than similar non-synchronous converters. They also feature a pulse-frequency-modulation (PFM) standby mode to improve efficiency at light loads, and a 1µA shutdown mode. An efficiency-enhancing track mode reduces the step-up DC-DC converter output to 300mV above the linear-regulator output. Both devices come in a 16-pin QSOP package, which occupies the same space as an 8-pin SO. Other features include two shutdown-control inputs for push-on/push-off control, and an uncommitted comparator for use as a voltage monitor.

Where to Buy

Prices starting from US$4.74

Distributor Stock
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Farnell
from US$4.74
63
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Analog Devices
from US$4.84
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Newark Electronics
from US$5.77
63
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element14
from US$5.15
63
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Features

Up to 96% Efficiency
1.1VIN Guaranteed Startup
Up to 850mA Output (MAX1705)
Step-Up Output (2.5V to 5.5V Adjustable)
Linear Regulator (1.25V to 5.0V Adjustable)
PWM/PFM Synchronous-Rectified Topology
300kHz PWM Mode or Synchronizable
1µA Shutdown Mode
Voltage Monitor
Pushbutton On/Off Control

Specifications

VIN (V) (min) 0.7
VIN (V) (max) 5.5
VOUT1 (V) (min) 2.5
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 0.4
Switch Type Internal
Output Adjust. Method Resistor
Synchronous Switching? Yes
Power Good Signal Yes
IQ (mA) (max) 0.19
# DC-DC Outputs 1
Alternate Topology Step-Up
# LDO/ Op.Amp. Outputs 1
Switching Frequency (kHz) 400
Package/Pins QSOP/16
Oper. Temp. (°C) -40 to +85
BudgetaryPrice (See Notes) 3.3


MAX1706EEE+ Power Management ICs - PMIC by Analog Devices

DC/DC CONV/LDO 2 O/P 400KHZ QSOP-16

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

Specifications

Supply Voltage 5.5V
No. of Step-Down DC - DC Converters -
No. of LDO Regulators 1
No. of Regulated Outputs 2
Digital IC Case QSOP
No. of Pins 16Pins
Operating Temperature Min -40°C
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 to 3 Cell, High Current, Low | Analog Devices
Dc/Dc Conv/Ldo, 2 O/P, 400Khz, Qsop-16 | Newark Electronics
DC/DC CONV/LDO, 2 O/P, 400KHZ, QSOP-16 | element14

Frequently Asked Questions

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Is the MAX1706EEE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX1706EEE+ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX1706EEE+ .

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