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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
Sample & Buy
| Part Number | Package | Packing Type | Marketing Status | Budgetary Price (US$)* | Quantity | ECCN (US) | Country of Origin | Order from Distributors | Order from ST |
|---|---|---|---|---|---|---|---|---|---|
| A5974ADTR | PowerSO-8 | Tape And Reel |
Active
|
1.721 | 10000 | EAR99 | CHINA | No availability of distributors reported, please contact our sales office | |
| A5974AD | PowerSO-8 | Tube |
Active
|
1.721 | 10000 | EAR99 | CHINA | No availability of distributors reported, please contact our sales office |
A5974ADTR
Package
PowerSO-8Packing Type
Tape And ReelUnit Price (US$)
1.721*A5974AD
Package
PowerSO-8Packing Type
TubeUnit Price (US$)
1.721*(*) 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
Featured Videos
| 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.
