Product overview
Description
The L7986TA is a step-down switching regulator with 3.7 A (min.) current limited embedded Power MOSFET, so it is able to deliver up to 3 A current to the load depending on the application conditions.
The input voltage can range from 4.5 V to 38 V, while the output voltage can be set starting from 0.6 V to VIN.
Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.
The HSOP package with exposed pad allows the reduction of RthJAdown to 40 °C/W.
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All features
- 3 A DC output current
- 4.5 V to 38 V input voltage
- Output voltage adjustable from 0.6 V
- 250 kHz switching frequency, programmable up to 1 MHz
- Internal soft-start and enable
- Low dropout operation: 100% duty cycle
- Voltage feed-forward
- Zero load current operation
- Overcurrent and thermal protection
- HSOP8 package
- Guarantee overtemperature range (-40 °C to 125 °C)
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3 A step-down switching demonstration board based on the L7986A in HSOP8 package
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Part number Status Description Type Supplier Worldwide,Asia,Europe,Africa,North America,South America,Oceania,Afghanistan,Bahrain,Bangladesh,Bhutan,Brunei,Burma (Myanmar),Cambodia,China,East Timor,India,Indonesia,Iraq,Japan,Jordan,Kazakhstan,Kuwait,Kyrgyzstan,Laos,Malaysia,Maldives,Mongolia,Nepal,Oman,Pakistan,Philippines,Qatar,Russian Federation,Saudi Arabia,Singapore,South Korea,Sri Lanka,Taiwan,Tajikistan,Thailand,Turkmenistan,United Arab Emirates,Uzbekistan,Vietnam,Yemen,Albania,Andorra,Armenia,Austria,Azerbaijan,Belarus,Belgium,Bosnia and Herzegovina,Bulgaria,Croatia,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Georgia,Germany,Greece,Hungary,Iceland,Ireland,Israel,Italy,Latvia,Liechtenstein,Lithuania,Luxembourg,Macedonia,Malta,Moldova,Monaco,Montenegro,Netherlands,Norway,Poland,Portugal,Romania,San Marino,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,Turkey,Ukraine,United Kingdom,Vatican City,Algeria,Angola,Benin,Botswana,Burkina,Burundi,Cameroon,Cape Verde,Central African Republic,Chad,Comoros,Democratic Republic of Congo,Djibouti,Egypt,Equatorial Guinea,Eritrea,Ethiopia,Gabon,Gambia,Ghana,Guinea,Guinea-Bissau,Ivory Coast,Kenya,Lesotho,Liberia,Libya,Madagascar,Malawi,Mali,Mauritania,Mauritius,Morocco,Mozambique,Namibia,Niger,Nigeria,Rwanda,Sao Tome and Principe,Senegal,Seychelles,Sierra Leone,Somalia,South Africa,Swaziland,Tanzania,Togo,Tunisia,Uganda,Zambia,Zimbabwe,Antigua and Barbuda,Bahamas,Barbados,Belize,Canada,Costa Rica,Dominica,Dominican Republic,El Salvador,Grenada,Guatemala,Haiti,Honduras,Jamaica,Mexico,Nicaragua,Panama,Saint Kitts and Nevis,Saint Lucia,Saint Vincent and the Grenadines,Trinidad and Tobago,United States,Argentina,Bolivia,Brazil,Chile,Colombia,Ecuador,Guyana,Paraguay,Peru,Suriname,Uruguay,Venezuela,Australia,Fiji,Kiribati,Marshall Islands,Micronesia,Nauru,New Zealand,Palau,Papua New Guinea,Samoa,Solomon Islands,Tonga,Tuvalu,Vanuatu Active3 A step-down switching demonstration board based on the L7986A in HSOP8 package
Power supplies and converters -- STEVAL-ISA100V1Description:
3 A step-down switching demonstration board based on the L7986A in HSOP8 package
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All resources
Resource title | Version | Latest update |
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Product Specifications (1)
Resource title | Version | Latest update | ||
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4.0 | 19 Sep 2016 | 19 Sep 2016 |
Technical Notes & Articles (2)
Resource title | Version | Latest update | ||
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2.4 | 11 Jul 2023 | 11 Jul 2023 | ||
1.0 | 02 May 2023 | 02 May 2023 |
Design Notes & Tips (1)
Resource title | Version | Latest update | ||
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1.2 | 18 Mar 2022 | 18 Mar 2022 |
Presentations (1)
Resource title | Version | Latest update | ||
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2.2 | 02 Aug 2023 | 02 Aug 2023 |
Flyers (2)
Resource title | Version | Latest update | ||
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2.0 | 05 Mar 2025 | 05 Mar 2025 | ||
1.0 | 22 Dec 2023 | 22 Dec 2023 |
Brochures (1)
Resource title | Version | Latest update | ||
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6.0 | 30 Jul 2024 | 30 Jul 2024 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L7986TA
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3D models
Quality and Reliability
Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
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L7986TA | Active | PowerSO-8 | Industrial | Ecopack2 | - | - | |
L7986TATR | Active | PowerSO-8 | Industrial | Ecopack2 | - | - |
Marketing Status
Package
PowerSO-8
Grade
Industrial
RoHS Compliance Grade
Ecopack2
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | ||||||||||||||||||||||||||
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L7986TATR | Active | 1.155 / 1k | Available at 3 distributors Distributor availability of L7986TATR
Distributor reported inventory date: 4/14/2025 | | | | Buy from Distributor | | PowerSO-8 | Tape and Reel | PHILIPPINES | EAR99 | NEC | |||||||||||||||||||||||||
L7986TA | Active | 1.155 / 1k | Available at 1 distributors Distributor availability of L7986TA
Distributor reported inventory date: 4/14/2025 | | | | Buy from Distributor | | PowerSO-8 | Tube | PHILIPPINES | EAR99 | NEC |
L7986TATR Active
Part Number:
L7986TATR
MOUSER
Stock
2907Min.Order
1FUTURE
Stock
200Min.Order
1Newark Element14
Stock
537Min.Order
0Distributor reported inventory date: 4/14/2025
Stock
Min.Order
L7986TA Active
Part Number:
L7986TA
MOUSER
Stock
4502Min.Order
1Distributor reported inventory date: 4/14/2025
Stock
Min.Order
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors