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The A6986 device is a step-down monolithic switching regulator able to deliver up to 2 A DC. The output voltage adjustability ranges from 0.85 V to VIN. The 100% duty cycle capability to withstand the cold crank event and the wide input voltage range make the A6986 device ideal for battery powered automotive systems. The “Low Consumption Mode” (LCM) is designed for applications active during car parking, so it maximizes the efficiency at the light-load with the controlled output voltage ripple. The “Low Noise Mode” (LNM) makes the switching frequency constant and minimizes the output voltage ripple overload current range, meeting the low noise application specification like car audio. The output voltage supervisor manages the reset phase for any digital load (μC, FPGA). The RST open collector output can also implement output voltage sequencing during the power-up phase. The synchronous rectification, designed for high efficiency at the medium - heavy load, and the high switching frequency capability makes the size of the application compact. Pulse-by-pulse current sensing on both power elements implements effective constant current protection.
Key Features
- AECQ100 qualification
- 2 A DC output current
- 4 V to 38 V operating input voltage
- Low consumption mode or low noise mode
- 30 μA IQ at light-load (LCM VOUT = 3.3 V)
- 8 μA IQ-SHTDWN
- Adjustable fSW (250 kHz - 2 MHz)
- Output voltage adjustable from 0.85 V to VIN
- Embedded output voltage supervisor
- Synchronization
- Adjustable soft-start time
- Internal current limiting
- Overvoltage protection
- Output voltage sequencing
- Peak current mode architecture
- RDSON HS = 180 mΩ, RDSON LS = 150 mΩ
- Thermal shutdown
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Product Specifications (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 19 Jun 2015 |
19 Jun 2015
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Technical Notes & Articles (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 29 Oct 2015 |
29 Oct 2015
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Flyers (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 12 Nov 2019 |
12 Nov 2019
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Brochures (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 23 Mar 2020 |
23 Mar 2020
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HW Model, CAD Libraries & SVD (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| ZIP | 30 Sep 2016 |
30 Sep 2016
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| A6986 |
Active
|
HTSSOP16 | Automotive | Ecopack2 | |
| A6986TR |
Active
|
HTSSOP16 | Automotive | 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.
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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$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| A6986 | 1 distributors | Buy now |
Active
|
EAR99 | NEC | Tube | HTSSOP16 | - | - | PHILIPPINES | 1.688 / 1k | |
| A6986TR | 1 distributors |
Active
|
EAR99 | NEC | Tape And Reel | HTSSOP16 | - | - | PHILIPPINES | 1.688 / 1k | ||
Marketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
1.688 / 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
