MAX1673ESA+ by Analog Devices

Regulated, 125mA Output, Charge Pump DC-DC Inverter

Status: Active
Series: MAX1673
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The MAX1673 charge-pump inverter provides a low-cost, compact means of generating a regulated negative output from a positive input at up to 125mA. It requires only three small capacitors, and only two resistors to set its output voltage. The input range is 2V to 5.5V. The regulated output can be set from 0V to -VIN in Skip regulation mode or -1.5V to -VIN in Linear (LIN) regulation mode. In Skip mode, the MAX1673 regulates by varying its switching frequency as a function of load current. This On-Demand™ switching gives the MAX1673 two advantages: very small capacitors and very low quiescent supply current. At heavy loads, it transfers energy from the input to the output by switching at up to 350kHz. It switches more slowly at light loads, using only 35µA quiescent supply current. In Linear mode, the MAX1673 switches at a constant 350kHz at all loads and regulates by controlling the current-path resistance. This provides constant-frequency ripple, which is easily filtered for low-noise applications. This device also features a 1µA logic-controlled shutdown mode and is available in a standard 8-pin SO package. For a device that delivers about 10mA and fits in a smaller package, refer to the MAX868.

Prices starting from US$2.70


Distributor Starting From Stock
Logo for element14 element14 US$3.55
297
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Logo for Farnell Farnell US$3.26
297
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Logo for Chip One Stop Chip One Stop US$2.70
70
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Logo for Newark Electronics Newark Electronics US$3.73
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Features

Regulated Negative Output Voltage (up to -1 x VIN)
125mA Output Current
35µA Quiescent Supply Current (Skip-mode regulation)
350kHz Fixed-Frequency, Low-Noise Output (Linear-mode regulation)
2V to 5.5V Input Range
1µA Logic-Controlled Shutdown

Specifications

Topology InverterRegulated
VIN (V) (min) 2
VIN (V) (max) 5.5
IOUT (A) (typ) 0.125
Unadj. VOUT (V) -VIN
Adj. VOUT (V) (min) -VIN
Adj. VOUT (V) (max) 0
IQ (mA) (max) 16
Switching Frequency (kHz) 350
Oper. Temp. (°C) -40 to +85
Package/Pins SOIC (N)/8
BudgetaryPrice (See Notes) 2.26


MAX1673ESA+ Semiconductors - ICs by Analog Devices

IC DC/DC INVERTOR 350KHZ SOIC-8

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

Specifications

Output Type Adjustable
Input Voltage Min 2V
Input Voltage Max 5.5V
DC / DC Converter IC Case NSOIC
No. of Pins 8Pins
Output Current 125mA
Fixed Output Voltage Nom. -
Adjustable Output Voltage Min -5.5V
Adjustable Output Voltage Max -1.5V
Topology Inverting
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
RoHS Phthalates Compliant To Be Advised
Frequency 350kHz
No. of Outputs 1Outputs
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +85°C
Output Current Max 0.125A
Output Voltage -3.02V
Output Voltage Max -1.5V
Output Voltage Min -5.5V
Primary Input Voltage 5.5V
Supply Voltage Min 2V
Switching Frequency 350kHz
Termination Type Surface Mount Device

Alternative Descriptions

IC, DC/DC INVERTOR, 350KHZ, SOIC-8 | element14
CONVERTISSEUR CC-CC SORTIE NÉGATIVE | RS
Dc-Dc Charge Pump, Adjustable, Nsoic-8 | Newark Electronics

Frequently Asked Questions

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Is the MAX1673ESA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including element14, Farnell, RS, Chip One Stop and Newark Electronics have stock available or on a lead time for MAX1673ESA+ .

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