L2720W13TR - Dual 1A Power Op Amp | STMicroelectronics
MPN： L2720W13TR ✓ 啟用中L2720W13TR 概覽
A power operational amplifier is a type of operational amplifier designed to drive heavier loads while maintaining stable operation within its supply rails. The L2720W belongs to the operational-amplifier hierarchy, which includes general-purpose amplifiers, high-current output amplifiers, and power-management signal-conditioning ICs. Unlike a discrete design combining a small-signal op amp with external transistor drivers, the L2720W integrates the drive capability into one IC and can reduce external component count in power-conversion feedback loops.
Key characteristics include two independent amplifier channels, 1 A output-current capability, a 2 V/µs slew rate, single- or split-supply operation, a large common-mode input range, low input-offset voltage, and ground-compatible inputs. The low-dropout architecture supports power-supply designs where the regulator output must approach the input rail. Split-supply operation allows the same device to control a midpoint biased around ground, while a single positive supply can support ground-referenced signal systems.
The wide-body SO16 package provides separate output-current and thermal considerations that differ from a standard SOIC. Because the amplifier can source or sink high current, PCB copper area, output-current limits, supply bypassing, and heat dissipation are central to reliable operation. The manufacturer's electrical characteristics are specified over a -40 °C to 125 °C ambient-temperature range under defined supply conditions.
Typical applications include servo amplifiers, regulated linear power supplies, motor and actuator control, audio power stages, sensor-conditioning paths, and industrial process-control systems. In a servo loop, the L2720W can amplify an error signal and drive a load directly when the load remains within its thermal and electrical limits. In a power-supply feedback path, its 1 A output capability reduces the need for an external booster stage.
Designers should check the output-current and thermal limits at the intended voltage, provide low-impedance bypassing at the supply pins, and use adequate PCB copper for heat spreading. The output-current capability does not eliminate the need to limit current during overload or startup. Verify absolute maximum ratings, output-swing behavior, stability requirements, and thermal conditions against the manufacturer datasheet before committing the SO16 footprint to a board.
This page consolidates the device identity, operating characteristics, package information, sourcing guidance, and practical design considerations into one engineering-oriented reference. It also identifies possible same-footprint alternatives while distinguishing confirmed facts from parameters that require comparison against the manufacturer documentation.
直接替換替代品，適用於 L2720W13TR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： L2720W13TR （相同外形與佔位） — 差異在於 Amplifier Type, Package, Slew Rate, Supply Voltage Range.
L2720D13TR
✅ 直接替換聯絡詢價
查看資料表 →L272D013TR
✅ 直接替換聯絡詢價
查看資料表 →TCA0372DWG
✅ 直接替換聯絡詢價
查看資料表 →TCA0372BDWR2G
✅ 直接替換📋 參考替代品（不在目錄中）
L2720W13TR 最大額定值與電氣特性
| Amplifier Type | Low-dropout dual power operational amplifier |
| Number of Amplifier Circuits | 2 circuits |
| Output Current Capability | 1 A |
| Slew Rate | 2 V/µs |
| Supply Voltage Range | 4.0 V to 28 V |
| 工作溫度範圍 | -40 °C to 125 °C |
| 封裝 | SO16 wide, 7.50 mm width |
| Package Type | 16-SOIC surface mount |
| Packaging | Tape and reel |
| Supply Configuration | Single or split supply |
L2720W13TR 16-soic surface mount 腳位配置指南
L2720W13TR（16-soic surface mount 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： L2720W13TR.
請參閱 資料表 以查看完整腳位配置。
典型應用
L2720W13TR 適用於 6 應用s: Servo Amplifier Control, Linear Power-Supply Feedback, Motor and Actuator Drive, Audio Power Stage, Industrial Sensor Conditioning, Precision Control and Instrumentation.
Servo Amplifier Control
The L2720W13TR is well suited to servo-amplifier error paths because its two channels, 1 A output-current capability, and 2 V/µs slew rate can drive higher-current actuator commands more effectively than a conventional small-signal dual op amp. A typical implementation compares a command or feedback signal and applies the amplified error to a motor or positioning stage. The wide-body SO16 outline should be placed on substantial copper to spread heat generated during high-current operation. Before finalizing the loop, verify output swing at the selected supply voltage, current limiting, compensation, and stability with the intended load.
推薦
Linear Power-Supply Feedback
In a regulated power-supply application, the L2720W13TR can amplify the difference between a feedback voltage and a reference and directly drive a power transistor or MOSFET stage. Its low-dropout construction, 4.0 V to 28 V operating range, and 1 A output-current capability make it useful where a conventional error amplifier would require a separate output buffer. The dual-channel arrangement can serve a main regulation loop and a secondary auxiliary function when the circuit topology permits. Compensation must be evaluated against the power-stage capacitance and load range, while output-current and thermal limits must remain below worst-case conditions.
推薦
Motor and Actuator Drive
The L2720W13TR can serve as a high-current linear driver for small motors, solenoids, and actuator stages when the load current stays within the device limits. Its 1 A output-current capability and 2 V/µs slew rate allow the amplifier output to follow command changes more quickly than a standard precision operational amplifier. In split-supply operation, the output can move above and below ground, which is useful for bidirectional actuator control. Engineers should add suitable current limiting, account for inductive load protection, and verify that the SO16 thermal design prevents excessive junction temperature.
推薦
Audio Power Stage
The L2720W13TR can amplify a line-level signal into a higher-current audio drive stage where the load power is moderate and a linear amplifier is acceptable. Its dual-circuit arrangement supports left and right channels, while the 2 V/µs slew rate helps reproduce larger signal transitions and the 1 A output capability provides more load drive than a conventional dual op amp. Ground-compatible inputs simplify single-supply designs, and split supplies support centered audio waveforms. Confirm output distortion, bandwidth, stability, headroom, and thermal dissipation in the target load rather than relying only on the headline current rating.
推薦
Industrial Sensor Conditioning
The L2720W13TR can provide the high-current output stage needed when a sensor or transducer must drive an instrumentation input farther than a standard precision amplifier can support. Its large common-mode input capability and ground-compatible inputs are useful for industrial signals referenced to ground, while the wide operating-temperature range covers harsh ambient conditions. The 1 A output rating should be treated as a maximum capability rather than a design target; use it only when the driven input actually requires high current. Input filtering, output stability, common-mode headroom, and PCB isolation should be verified with the sensor and cable arrangement.
推薦
Precision Control and Instrumentation
The L2720W13TR is useful in control and instrumentation blocks that need an error amplifier and a relatively heavy external load without adding a discrete output stage. Its dual channels can reduce component count in multi-loop equipment, and the wide 4.0 V to 28 V supply range accommodates multiple industrial power rails. The device is less appropriate than a precision op amp when the task only requires microamp-level output current, because the power stage introduces its own thermal and stability considerations. Select it when load drive is valuable, then validate offset, bandwidth, output swing, noise-sensitive signal paths, and compensation under real loading.
推薦
推薦產品摘要
工程參考資料，適用於 L2720W13TR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | L2720D13TR | L2720D | L272D013TR | TCA0372DWG | TCA0372BDWR2G |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Texas Instruments | Texas Instruments |
| Package | SO16 wide | SO16 wide | SO16 wide | SO16 wide | SO16 wide | SO16 wide |
| Amplifier Configuration | Dual | Dual | Dual | Dual | Dual | Dual |
| Single or Split Supply | Single or split supply | Single or split supply | Single or split supply | Single or split supply | Single or split supply | Single or split supply |
| Ground-Compatible Inputs | Yes | Yes | Yes | Yes | Yes | Yes |
| Special Features | Low-drop dual power operational amplifier | Higher-current L2720 family variant | L2720 power operational amplifier family | L272D power operational amplifier family | Power operational amplifier with integrated gain | Power operational amplifier with integrated gain |
主要差異化特點
- Single-package high-current output capability (對比TCA0372DWG)
- Simpler same-family replacement path (對比TCA0372BDWR2G)
- Lower slew rate than the higher-current L2720D variant (對比L2720D13TR)
設計說明
Treat the 1 A output rating as a capability that must be checked against the DC output-current limit and SO16 thermal resistance at the actual ambient temperature. Estimated: power dissipated by the output stage equals approximately (VOUT − VS/2) × IOUT for a split-supply stage centered at half the supply; multiply the result by the package thermal resistance to estimate junction-temperature rise. Add copper around the device, verify the datasheet limits, and avoid sustained operation near the current and temperature maxima.
Place the supply bypass capacitors close to the power pins and connect their ground returns to a low-impedance plane. The wide SO16 footprint should be oriented to give the output pins a direct, short path to the load and adequate copper for heat spreading. Keep high-current output wiring away from sensitive input and feedback traces, and check the package drawing carefully because SO16-wide and narrow SOIC-16 outlines are not mechanically interchangeable.
Do not assume that two amplifiers in the same IC can each sustain the headline output current simultaneously. Derate each channel according to the thermal limits for the actual package configuration and PCB layout. Also verify the output-swing limits, load stability, compensation network, and maximum differential input voltage. Using a higher-current variant without changing compensation or thermal design can cause oscillation or device damage.
For servo and power-supply loops, keep the feedback divider and error-amplifier input nodes away from the output and power-stage currents. Use a small, quiet ground return for reference and feedback components, while providing a separate low-impedance path for load current. Ground-compatible input capability simplifies single-supply interfacing, but it does not remove the need to keep feedback references within the actual common-mode and output-swing limits.
合規資訊
No explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals statement appears in the available manufacturer and distributor information. The L2720W13TR is an industrial dual power operational amplifier, and AEC-Q100 qualification is therefore listed as not applicable.
