MAX735
PRODUCTION-5V/Adjustable, Negative-Output, Inverting, Current-Mode PWAf Regulators
- Part Models
- 6
- 1ku List Price
- Starting From $3.60
Overview
- Converts +2.7V to +9V Input to Adjustable Negative Output (MAX755)
- Converts +4.0V to +6.2V Input to -5V Output (MAX735)
- 1W Guaranteed Output Power (VIN ≥ 4.5V)
- 78% Typical Efficiency
- 1.6mA Quiescent Current (MAX735)
- 10µA Shutdown Mode
- 160kHz Fixed-Frequency Oscillator
- Current-Mode PWM - Low Noise and Jitter
- Soft-Start
- Simple Application Circuit
The MAX735 and MAX755 are CMOS, inverting switch mode regulators with internal power MOSFETs. The MAX755 operates from a +2.7Vto +9V input and generates an adjustable negative output; 1W output power is guaran teed when powered from a +4.5V input. The MAX735 operates from a +4.0V to +6.2V output; 200mA output current is guaranteed for inputs greater than +4.5V. Quiescent supply current for the MAX735 is typically 1.6mA, and a shutdown mode reduces this to 10µA. These power conserving features, along with high efficiency and applications circuits that lend themselves to miniaturization, make the MAX735/MAX755 excel in a broad range of on-card and portable-equipment applications.
The MAX735/MAX755 employ a high-performance current mode pulse-width modulation (PWM) control scheme to provide tight output-voltage regulation and low subharmonic noise. The fixed-frequency oscillator is factory trimmed to 160kHz, allowing for easy noise filtering. The regulators are production tested in actual application circuits, and output accuracy is guaranteed to within ±5% over all specified conditions of line, load, and temperature.
The input-to-output differential of the MAX755 is limited to VIN + VOUT ≤ 11.7V.
For an adjustable-output device with a wider input voltage range, refer to the MAX759 data sheet. For a fixed -5V part with a wider input voltage range, refer to the MAX739 data sheet. For fixed -12V and -1SV versions, see the MAX736 and MAX737 data sheets. For lower-power applications, refer to the MAX635/636/637 data sheet.
APPLICATIONS
-
Board-Level DC-DC Conversion Battery-Powered Equipment Computer Peripherals
Documentation
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX735CPA+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX735CSA+ | Small-Outline IC Narrow (0.15in) | ||
| MAX735CSA+T | Small-Outline IC Narrow (0.15in) | ||
| MAX735EPA+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX735ESA+ | Small-Outline IC Narrow (0.15in) | ||
| MAX735ESA+T | Small-Outline IC Narrow (0.15in) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 30, 2020 - 1702R2 ASSEMBLY |
||
| MAX735CSA+ | PRODUCTION | |
| MAX735CSA+T | PRODUCTION | |
| MAX735ESA+ | PRODUCTION | |
| MAX735ESA+T | PRODUCTION | |
|
Apr 20, 2026 - 2571A PIN/ERRATA |
||
| MAX735CSA+T | PRODUCTION | |
| MAX735ESA+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
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