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The A5974AD is a step-down monolithic power switching regulator with a minimum switch current limit of 2.5 A, it is therefore able to deliver up to 2 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to a HSOP8 package with exposed frame, that allows to reduce the RTHJ-A down to approximately 40 °C/W. The device uses an internal P-channel DMOS transistor (with a typical RDS(on) of 250 mΩ) as switching element to minimize the size of the external components. An internal oscillator fixes the switching frequency at 500 kHz. Having a minimum input voltage of only 4 V, it fits automotive applications requiring device operation even in cold crank conditions. Pulse-by-pulse current limit with the internal frequency modulation offers an effective constant current short-circuit protection.
Key Features
- Qualified following the AEC-Q100 requirements (see PPAP for more details)
- 2 A DC output current
- Operating input voltage from 4 V to 36 V
- 3.3 V / (±2%) reference voltage
- Output voltage adjustable from 1.235 V to 35 V
- Low dropout operation: 100% duty cycle
- 500 kHz internally fixed frequency
- Voltage feed-forward
- Zero load current operation
- Internal current limiting
- Inhibit for zero current consumption
- Synchronization
- Protection against feedback disconnection
- Thermal shutdown
Featured Videos
All resources
Product Specifications (1)
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| 25 Sep 2020 |
25 Sep 2020
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Technical Notes & Articles (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 29 Oct 2015 |
29 Oct 2015
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Flyers (2)
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| 24 Mar 2020 |
24 Mar 2020
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| 12 Sep 2015 |
12 Sep 2015
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Brochures (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 23 Mar 2020 |
23 Mar 2020
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CAD/EDA Symbols, Footprints and Models
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HW Model, CAD Libraries & SVD (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| ZIP | 22 Sep 2016 |
22 Sep 2016
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| A5974AD |
Active
|
PowerSO-8 | Automotive | Ecopack2 |
|
| A5974ADTR |
Active
|
PowerSO-8 | Automotive | Ecopack2 |
|
A5974AD
Package:
PowerSO-8Material Declaration**:
A5974ADTR
Package:
PowerSO-8Material Declaration**:
(**) 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.
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Sample & Buy
| Part Number | Order from Distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| A5974ADTR | No availability of distributors reported, please contact our sales office |
Active
|
EAR99 | NEC | Tape And Reel | PowerSO-8 | - | - | PHILIPPINES | 1.721 / 1k | ||
| A5974AD | No availability of distributors reported, please contact our sales office |
Active
|
EAR99 | NEC | Tube | PowerSO-8 | - | - | PHILIPPINES | 1.721 / 1k | ||
Marketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
1.721 / 1kMarketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
1.721 / 1k(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors
