MAX853
Low-Noise, Regulated, Negative Charge Pump Power Supplies for GaAsFET Bias
1mVP-P Output Voltage Ripple (MAX853)
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Overview
Features and Benefits
- Fixed -4.1V or Adjustable -0.5V to -9V Output at 5mA
- 4.5V to 10V Input Voltage Range
- 2mVP-P Output Voltage Ripple (MAX850-MAX852)
- 1mVP-P Output Voltage Ripple (MAX853)
- 100kHz Charge-Pump Switching Frequency (MAX850/MAX851/MAX853)
- External Synchronizing Clock Input (MAX852)
- Logic-Level Shutdown Mode: 1µA Max Over Temperature (MAX850/MAX852/MAX853)
- Low Cost, 8-Pin SO Package
Product Details
The MAX850-MAX853 low-noise, inverting, charge-pump power supplies are ideal for biasing GaAsFETs in cellular telephone transmitter amplifiers.
The MAX850-MAX852 offer both preset (-4.1V) and adjustable (-0.5V to -9.0V) output voltages. The MAX853 uses an external positive control voltage to set the negative output voltage. Input voltage range for all four devices is 4.5V to 10V. Output current is 5mA.
An internal linear regulator reduces the output voltage ripple to 2mVP-P. With a well-filtered control voltage (VCTRL), the MAX853 achieves typical output ripple of less than 1mVP-P. Supply current is 3mA max, and shutdown current is less than 1µA max over temperature (5µA max for MAX851).
Applications
- Cell Phones
- Continuously Adjustable GaAsFET Bias
- LCD-Bias Contrast Control
- Negative Regulated Power Supplies
- Personal Communicators, PDAs
- Wireless Data Loggers
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
Product Recommendations
MAX853 Companion Parts
Recommended Related Parts
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX853ESA+ | Material Declaration | Reliability Data | Small-Outline IC, Narrow (0.15in) | |
| MAX853ESA+T | Material Declaration | Reliability Data | Small-Outline IC, Narrow (0.15in) | |
| MAX853ISA+ | Material Declaration | Reliability Data | Small-Outline IC, Narrow (0.15in) | |
| Wafer Fabrication Data |
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