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A7987TR The STMicroelectronics A7987TR is a step-down DC DC switching controller. It operates with a voltage range of 4.5V to 61V and a frequency of 250kHz to 1.5MHz.
Mfr Part #:

A7987TR

Available from 4 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics A7987TR is a step-down DC DC switching controller. It operates with a voltage range of 4.5V to 61V and a frequency of 250kHz to 1.5MHz.
✓ Total Stock: 33,250 pcs
$ Price Range: $0.75

A7987TR Available from 4 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
15,000 pcs
On Request
15000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Optech Co.,Limited ✓
Non-Authorised Inventory information
10,000 pcs
On Request
10000 pcs On Request 1 On Request On Request 21+ On Request On Request
Fe Components ✓
Non-Authorised Inventory information
5,000 pcs
On Request
5000 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
3,250 pcs
On Request
3250 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

A7987TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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A7987TR Description

Short technical summary and product information.

The STMicroelectronics A7987TR is a versatile DC DC switching controller designed for step-down applications. It features a wide operating voltage range from 4.5V to 61V, making it suitable for various power management needs.

 

This controller operates with a frequency adjustable between 250kHz and 1.5MHz, offering flexibility in design. Key control features include current limit, enable, frequency control, power good, and soft start, enabling robust power system design. The device supports a 100% maximum duty cycle and utilizes a Buck-Boost topology with synchronous rectification.

 

Packaged in a 16-HTSSOP, the A7987TR is designed for surface mount applications. It has an operating temperature range of -40°C to 150°C (TJ), ensuring reliable performance in demanding environments. The output type is a transistor driver, and it supports clock synchronization.

A7987TR Quick Information

Product Type: DC DC Switching Controller
Canonical Name: A7987TR Step-Down DC-DC Switching Controller
Subcategory: Power Management (PMIC)

A7987TR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

A7987TR Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

A7987TR Features

  • Wide 4.5V to 61V operating voltage range.
  • Adjustable frequency from 250kHz to 1.5MHz.
  • Integrated control features for robust design.
  • Buck-Boost topology with synchronous rectification.
  • Surface mount 16-HTSSOP package.

A7987TR Applications

  • Suitable for step-down power conversion.
  • Ideal for power management circuits.
  • Used in applications requiring wide voltage input.
  • Supports flexible frequency control.

A7987TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the A7987TR?

The A7987TR operates from 4.5V to 61V.

What package is the A7987TR available in?

The A7987TR is available in a 16-PowerTSSOP (0.173", 4.40mm Width) package, also referred to as 16-HTSSOP.

What is the operating temperature range of the A7987TR?

The A7987TR is rated for -40°C to 150°C junction temperature.

What is the switching frequency range of the A7987TR?

The switching frequency is adjustable from 250kHz to 1.5MHz.

Does the A7987TR have a synchronous rectifier?

Yes, the A7987TR features a synchronous rectifier.

What control features does the A7987TR provide?

The A7987TR includes current limit, enable, frequency control, power good, and soft start.

How many outputs does the A7987TR have?

It has one output with a positive configuration.

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