STMicroelectronics A7987TR DC DC Switching Controllers
61 V 3A ASYNCHRONOUS STEP-DOWN S
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
A7987TR
Detailed Description
61 V 3A ASYNCHRONOUS STEP-DOWN S
Package
16-PowerTSSOP (0.173", 4.40mm Width)
Key Features
Package / Case: 16-PowerTSSOP (0.173", 4.40mm Width); Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
A7987TR Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics A7987TR DC DC Switching Controllers technical specifications.
General
Package / Case
16-PowerTSSOP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 150°C (TJ)
Supply Voltage
4.5V ~ 61V
Output Type
Transistor Driver
Switching Frequency
250kHz ~ 1.5MHz
Number of Outputs
1
Topology
Buck-Boost
Control Features
Current Limit, Enable, Frequency Control, Power Good, Soft Start
Output Configuration
Positive
Alternate Parts Comparison (A7987TR vs LM1770TMFX/NOPB vs UC3843BN vs UC3845BN)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 16-PowerTSSOP | SC-74A, SOT-753 | 8-DIP | 8-DIP |
| Mounting Type | Surface Mount | Surface Mount | Through Hole | Through Hole |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 125°C (TJ) | 0°C ~ 70°C (TJ) | -40°C ~ 150°C (TJ) |
| Supply Voltage | 4.5V ~ 61V | 2.8V ~ 5.5V | 7.6V ~ 30V | 7.6V ~ 30V |
| Switching Frequency | 250kHz ~ 1.5MHz | 100kHz ~ 1MHz | Up to 500kHz | Up to 500kHz |
| Clock Sync | Yes | No | No | No |
| Function | Step-Down | Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Output Configuration | Positive | Positive | Positive, Isolation Capable | Positive, Isolation Capable |
| Output Phases | 1 | 1 | 1 | 1 |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Synchronous Rectifier | Yes | Yes | No | No |
| Action |
More Parts in DC DC Switching Controllers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.