MAX766CSA+ Maxim Integrated Integrated Circuit (Small Outline Packages) In Stock
Maxim MAX766CSA+ is an inverting DC-DC converter operating from a 3 V to 16 V input to generate adjustable negative output voltages from -1 V to -16 V in an 8-pin SOIC package. It uses current-mode pulse frequency modulation control for efficient light-load performance. Available from stock with worldwide shipping.
- Manufacturer
- Maxim Integrated
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MAX766CSA+ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.6600(MOQ 100)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MAX766CSA+?
- Inverting DC-DC topology generates adjustable negative output from -1 V to -16 V from a single 3 V to 16 V positive supply without a transformer
- Current-mode pulse frequency modulation (PFM) control achieves high efficiency at light loads with minimal quiescent current consumption
- 8-pin 150-mil SOIC (SOIC-8) package enables compact PCB layouts with standard wave or reflow soldering
- Wide 3 V to 16 V input range supports operation from 3.3 V, 5 V, 12 V, and unregulated battery supply rails
What is MAX766CSA+ used for?
The MAX766CSA+ is used in portable instruments, LCD bias generators, and op-amp supply circuits where a negative rail must be derived from a single positive battery or regulated supply voltage. Its PFM control scheme makes it efficient for light-load sensor interface boards running on 3.3 V or 5 V rails. The adjustable output allows designers to set the negative voltage between -1 V and -16 V using an external resistor divider network.
What are the specifications of MAX766CSA+?
| Manufacturer Package Code | 8-SOIC_N-150_MIL |
| Date Of Intro | 1994-06-01 |
| YTEOL | 9 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE FREQUENCY MODULATION |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 3V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 1.5A |
| Output Voltage-Nom | -15 V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.12mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 300kHz |
| Technology | BICMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## MAX766CSA+ Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Where can I find the MAX766CSA+ datasheet?
MAX766CSA+ Datasheet DownloadOfficial datasheet from Maxim Integrated
What are equivalent replacements for MAX766CSA+?
Compatible alternatives and drop-in replacements for MAX766CSA+:
Frequently Asked Questions
What input voltage range does the MAX766CSA+ support for generating a negative output?
The MAX766CSA+ accepts an input voltage from 3 V to 16 V, with a nominal operating point of 5 V. This wide range allows it to be powered directly from 3.3 V microcontroller rails, 5 V logic supplies, or 12 V unregulated adapters, making it versatile for both battery-powered portable devices and bench-powered industrial instruments.
How does PFM control in the MAX766CSA+ benefit battery-powered designs compared to fixed-frequency PWM converters?
Pulse frequency modulation (PFM) skips switching cycles when the load is light, reducing average switching losses and quiescent current to extend battery life. At light loads below a few milliamps, PFM can achieve efficiencies above 80%, whereas a fixed-frequency PWM converter continues switching at full frequency regardless of load, wasting energy in gate-drive and core losses. This makes MAX766CSA+ well-suited for duty-cycle IoT sensors and LCD bias supplies with intermittent loads.
What external components are required to set the output voltage of the MAX766CSA+?
The MAX766CSA+ requires an external resistor divider connected to its feedback pin to set the output voltage anywhere in the -1 V to -16 V range. A switching inductor (typically 22 µH to 100 µH), an output capacitor (typically 10 µF to 100 µF), and a Schottky catch diode complete the inverting boost circuit. The total solution typically fits within a 1 cm² PCB area alongside the 8-pin SOIC package.
When should a designer consider MAX766CSA+ instead of a charge-pump inverter for generating a negative supply?
An inductor-based inverting converter like MAX766CSA+ is preferred when the output current exceeds 50 mA, when the input-to-output voltage ratio requires more than a 2× conversion, or when efficiency at mid to full load is critical. Charge pumps are limited to 1× or 2× voltage inversion with typically under 100 mA output current, while MAX766CSA+ can deliver up to 200 mA from a 5 V input with its -1 V to -16 V adjustable output.
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About Maxim Integrated
Maxim Integrated is a leading electronic component manufacturer. FindMyChip sources Maxim Integrated ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Maxim Integrated
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $5.6742 | $567.42 |
| 500+ | $5.2500 | $2625.00 |
| 1000+ | $4.9600 | $4960.00 |
| 10000+ | $4.6600 | $46600.00 |
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