L272M-ON - 0.7A Dual Power Op Amp | onsemi | Industrial
MPN: L272M-ON ✓ ActiveL272M-ON Overview
A power operational amplifier is a specialized type of operational amplifier that provides voltage gain together with substantially greater output-current capability than a conventional signal-level op amp. In the electronics hierarchy, the L272M-ON belongs to the operational-amplifier family, within amplifier ICs and analog signal-processing semiconductors. Its principal role is to amplify a control voltage while driving a low-impedance load that would overload a standard precision amplifier.
The primary verified specifications are its dual-circuit architecture, 8-Mini-DIP construction, high-gain/high-output design, suitability for low-impedance loads, and output current up to 0.7 A. According to the onsemi product page, the L272 family was created for applications where an operational amplifier and separate power-booster stage would otherwise be required. Combining those functions can simplify analog power-control circuits while preserving a conventional op-amp signal interface.
The L272M-ON is relevant to power supplies, servo amplifiers, audio equipment, compact-disc mechanisms, and other applications requiring high output current from an operational-amplifier stage. Its two independent channels can also implement dual feedback loops, push-pull driver stages, motor-control loops, or two coordinated actuator-control channels. Exact supply voltage, gain-bandwidth, slew rate, thermal resistance, and common-mode limits must be confirmed in the manufacturer datasheet before final circuit design.
Thermal design is a central implementation consideration. A device capable of delivering up to 0.7 A can dissipate substantial power when the output voltage and load current are both appreciable. Designers should calculate worst-case dissipation, provide adequate copper around the Mini DIP leads, and account for the package pin limits in the selected operating mode. Negative or bidirectional drive requirements also need careful output-stage and grounding analysis.
This page combines manufacturer-family information, verified distributor availability, package details, practical application guidance, and a structured comparison of same-footprint alternatives. It also identifies missing electrical details instead of estimating them, helping engineers distinguish confirmed L272M-ON characteristics from values that still require review of the original manufacturer datasheet.
Drop-in alternatives for L272M-ON — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
L272
✅ Drop-In📋 Reference alternative (not in catalog)
L272A
✅ Drop-In📋 Reference alternative (not in catalog)
L272AM
✅ Drop-InContact for price
View Datasheet →L272M
✅ Drop-In📋 Reference alternative (not in catalog)
L272M
✅ Drop-In📋 Reference alternative (not in catalog)
L272M-ON Maximum Ratings & Electrical Characteristics
| Amplifier Type | Dual high-power operational amplifier |
| Number of Channels | 2 channels |
| Maximum Output Current | 0.7 A |
| Output Configuration | Single-ended power output stage |
| Load Compatibility | Low-impedance loads |
| Voltage Gain | High gain |
| Package | MDIP-8, 8-lead Mini DIP |
| Mounting Type | Through-hole |
L272M-ON mdip-8, 8-lead mini dip Pin Configuration Guide
Pin configuration for L272M-ON (mdip-8, 8-lead mini dip package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for L272M-ON.
Refer to the datasheet for full pin configuration.
Typical Applications
L272M-ON is suitable for 6 applications: Servo Amplifier Control, Audio Power Drive, Power Supply Error Amplifier, Low-Impedance Buffer Stage, Motor and Actuator Driver, Compact Disc and Consumer Drive Electronics.
Servo Amplifier Control
The L272M-ON fits servo-control loops because it combines high gain with output-current capability up to 0.7 A, allowing a low-level position or velocity command to drive a relatively low-impedance actuator directly. The onsemi product page explicitly identifies servo amplifiers as an intended L272 application. In a closed-loop system, the amplifier corrects the error signal and drives the motor winding while feedback controls position. Engineering review must confirm supply voltage, output swing, current limits, slew behavior, and thermal rise under the worst-case load. Because the MDIP 8 package dissipates power internally, generous copper area and airflow may be needed when continuous current is high.
Recommended
Audio Power Drive
The L272M-ON can serve as a high-current audio driver stage where the target impedance is too low for a conventional small-signal operational amplifier. Its dual-channel arrangement supports balanced or two-channel audio topologies, while the verified 0.7 A output capability provides substantially more source and sink current than a general-purpose signal op amp. According to the onsemi L272 page, audio-related compact-disc and other high-output-power applications are within the intended family use cases. Final design approval should verify frequency response, slew rate, output-voltage swing, noise, distortion, and stability because those values were not included in the supplied distributor results.
Recommended
Power Supply Error Amplifier
The L272M-ON is applicable to power-supply control loops that require an error amplifier to source or sink substantial current into a compensation or drive network. Its high-gain input stage supports closed-loop regulation, while the 0.7 A output capability can reduce the need for a separate output buffer in suitable topologies. The manufacturer identifies power supplies among the L272 family's intended applications. Designers must still check loop stability, supply range, common-mode range, saturation recovery, and maximum output current at the selected operating temperature. Thermal calculations should include the voltage dropped across the output stage multiplied by worst-case current rather than relying on the nominal output-current rating alone.
Recommended
Low-Impedance Buffer Stage
The L272M-ON can function as a unity-gain or inverting buffer for sensors, transducers, and control signals connected to loads that would overload a conventional op amp. Its two channels allow one stage to handle excitation or signal conditioning and the other to perform complementary buffering. The onsemi product page explicitly describes the L272 as a high-power operational amplifier intended for low-impedance loads, eliminating the usual requirement for a separate power-buffer stage. Practical use still requires confirmation of output swing, stability with capacitive loads, input bias effects, and thermal dissipation at the selected voltage and current.
Recommended
Motor and Actuator Driver
The L272M-ON can drive motor windings, relays, solenoids, or other actuators where bidirectional current and low-impedance loading are important. Its dual architecture provides two independently controlled outputs, allowing complementary drive or dual-axis actuator operation. The family is explicitly associated with servo amplifiers, making it relevant to feedback-controlled positioning and motion systems. The primary engineering limits to verify are current capability under continuous rather than peak load, output saturation limits, supply-headroom requirements, inductive flyback handling, and package thermal performance. Suitable flyback paths or other energy-management components must be added according to the actuator and switching requirements.
Recommended
Compact Disc and Consumer Drive Electronics
The L272M-ON fits legacy consumer-drive electronics in which a low-level error or control signal must drive a low-impedance actuator or load. The manufacturer description of the L272 family specifically includes compact-disc mechanisms and highlights high gain and high output-power capability for servo and power-supply functions. Such designs typically depend on the amplifier's ability to source and sink current without external boost transistors. A modern redesign should preserve the original feedback network and verify offset, bias current, slew rate, and thermal behavior against the onsemi datasheet. Counterfeit control and obsolete companion components are additional lifecycle risks that should be managed through authorized sourcing and careful inspection.
Recommended
Recommended Products Summary
Engineering reference data for L272M-ON — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | L272 | L272A | L272AM | L272M | L272M |
|---|---|---|---|---|---|---|
| Package | MDIP-8, 8-lead Mini DIP | MDIP-8 | MDIP-8 | MDIP-8 | MDIP-8 | 8-pin Mini DIP |
| Brand | onsemi | onsemi | onsemi | onsemi | onsemi | STMicroelectronics |
| Amplifier Configuration | Dual operational amplifier | Dual operational amplifier | Dual operational amplifier | Dual operational amplifier | Dual operational amplifier | Dual operational amplifier |
Key Differentiators
- High output-current capability for an operational-amplifier package (vs LM358)
- Available tighter input specifications in the L272A family member (vs L272)
- Integrated power-output capability can simplify low-impedance drive stages (vs L2724)
- Verified onsemi availability with a stated starting price (vs STMicroelectronics L272M)
Design Notes
Estimated: power dissipation is approximately P_D = (V_OUT - V_IN_LOAD) × I_OUT when the output transistor is conducting the calculated load voltage. For example, a 5 V output at 0.5 A dissipates about 2.5 W before including quiescent and feedback-network losses. Apply that result to the actual MDIP thermal data, enlarge the copper area around all eight leads, and avoid relying on the 0.7 A output rating without checking the resulting temperature rise.
Keep the high-current output node short and use broad copper for both source and sink current. Place the operational amplifier close to power-supply decoupling and the driven load so that output-current loops do not share narrow PCB traces with sensitive reference or feedback nodes. Because this is a through-hole Mini DIP rather than a compact surface-mount power device, lead-bend and soldering stress must also be controlled during assembly.
Do not assume that an 8-pin dual power operational amplifier is interchangeable with a conventional LM358 merely because both are dual op amps. The L272M-ON is intended for substantially higher output current, while its exact input-offset, bias-current, slew-rate, supply, and thermal limits must be confirmed. Verify the numbered pinout from the onsemi datasheet before substitution, particularly for feedback, compensation, supply, and output connections.
Return both amplifier-channel grounds to a low-impedance reference point and treat the output stage as a high-current path rather than a signal-only route. Keep feedback resistors close to the relevant input pins to minimize parasitic coupling. If driving an inductive or capacitive load, evaluate output stability and transient protection; the supplied data does not provide a safe-operating-area graph or load-capacitance limit, so those values must come from the manufacturer datasheet.
Compliance Information
The supplied verified results do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from manufacturer identity or package format.
