Spot sales of MAX735ESA+ -5V/Adjustable, Negative-Output,Inverting, Current-mode PWM Regulators SOP8

Product Descriptions

The MAX735 and MAX755 are CMOS, inverting switch-mode regulators with internal power MOSFETs. TheMAX755 operatesfrom a +2.7Vto +9V input and generatesan adjustable negative output; 1W output power is guaran-teed when powered from a +4.5V input. The MAX735operates from a +4.0V to +6.2V output; 200mA outputcurrent is guaranteed for inputs greater than +4.5V. Qui-escent supply current for the MAX735 is typically 1.6mA,and a shutdown mode reduces this to 10uA. These power-conserving features, along with high efficiency and appli-cations circuits that lend themselves to miniaturization,make the MAX735/MAX755 excel in a broad range ofon-card and portable-equipment applications.

The MAX735/MAX755 employ a high-performance current-mode pulse-width modulation (PWM) control scheme toprovide tight output-voltage regulation and low subhar-monic noise. The fixed-frequency oscillator is factory-trimmed to 160kHz, allowing for easy noise filtering. Theregulators are production tested in actual application cir-cuits, and output accuracy is guaranteed to within +5 Percnt over all specified conditions of line, load, and temperature.The input-to-output differential of the MAX755 is limitedto VIN + IVOUTI≤ 11.7V.

For an adjustable-output device with a wider input voltagerange, refer to the MAX759 data sheet. For a fixed -5V partwith a wider input voltage range, refer to the MAX739 datasheet. For fixed -12V and -15V versions, see the MAX736and MAX737 data sheets. For lower-power applications,refer to the MAX635/636/637 data sheet.

Product Features

Converts +2.7V to +9V Input to AdjustableNegative Output (MAX755)

Converts +4.0V to +6.2V Input to -5V Output (MAX735)

1W Guaranteed Output Power (ViN > 4.5V)

78 Percent Typical Efficlency

1.6mA Quiescent Current (MAX735)

10uA Shutdown Mode

160kHz Fixed-Frequency Oscillator

Current-Mode PWM - Low Noise and Jitter

Soft-Start

Simple Application Circult

Product Applications

Board-Level DC-DC Conversion

Battery-Powered Equipment

Computer Peripherals

Product Specifications

Product Photos

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