MAX736
PRODUCTION-5V, -12V, -15V, and Adjustable Inverting Current-Mode PWM Regulators
- Part Models
- 4
- 1ku List Price
- Starting From $5.42
Overview
- Pre-Set -5V, -12V, -15V or Adjustable Outputs
- Convert Positive Voltages to Negative
- 1.25W Guaranteed Output Power
- 83% Typical Efficiency
- 1.7mA Quiescent Current (MAX739)
- 1µA Shutdown Mode (MAX739)
- +4V to +15V Input Voltage Range
- 165kHz Current-Mode PWM - Low Noise and Jitter
- Undervoltage Lockout and Soft-Start Protection
The MAX736/MAX737/MAX739/!MAX759 are CMOS, inverting, switch-mode regulators with an internal power MOSFET. Guaranteed output power for the MAX.739 is 1.25W when powered from a +4.5V input, and 1.5W when powered from +6V. Quiescent supply current for the MAX739 is typically 1. 7mA, and a shutdown mode reduces this to 1µ.A. These power-conserving features, along with high efficiency and an application circuit that lends itself to miniaturization, make these parts excel in a broad range of on-card and portable equipment applications.
The MAX736/MAX/737/MAX739 have fixed outputs of -12\/, -15V, and -5V respectively. The MAX759 is adjustable from 0V to -1 SV. Output voltages beyond -15V require a transformer.
These inverting DC-DC converters employ a high-performance, current-mode, pulse-width modulation (PWM) control scheme to provide tight output voltage regulation and low noise. The fixed-frequency oscillator is factory-trimmed to 165kHz, allowing easy noise filtering. The devices are production tested in an actual application circuit, and output accuracy is guaranteed at ±5% over all specified conditions of line, load, and temperature.
The input voltage range is +4V to + 15V. For similar devices with smaller packages and an input voltage range of +4V to + 11V, refer to the MAX735/MAX755 data sheet.
APPLICATIONS
- Low-Noise Analog Signal Processing Circuits
- LCD Bias Supplies
- Power Supplies for ECL
- 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 |
|---|---|---|---|
| MAX736CWE+ | Small-Outline IC Wide (0.3in) | ||
| MAX736CWE+T | Small-Outline IC Wide (0.3in) | ||
| MAX736EWE+ | Small-Outline IC Wide (0.3in) | ||
| MAX736EWE+T | Small-Outline IC Wide (0.3in) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Evaluation Kits
Evaluation Kit for the MAX739
Evaluation Kit for the MAX759
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