A5970AD：Up to 1 A step down switching regulator for automotive applications
The A5970AD is a step-down monolithic power switching regulator with a minimum switch current limit of 1.35 A so it is able to deliver up to 1 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to VIN.
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 4 V only it fits the automotive applications requiring the 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)
- 1 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 VIN
- 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
Product Specifications
| Description | Version | Size |
|---|---|---|
| DS5812: Up to 1 A step down-switching regulator for automotive applications | 5.0 | 992 KB |
Application Notes
| Description | Version | Size |
|---|---|---|
| AN3288: g-Brake Lights: an adaptive rear lighting system based on the AIS326DQ inertial sensor and the STM8AF5168 MCU | 2.1 | 1 MB |
HW Model & CAD Libraries
| Description | Version | Size |
|---|---|---|
| X597X Pspice model | 3 MB |
Flyers
| Description | Version | Size |
|---|---|---|
| A798x, A597x switching regulators for car power management | 1.0 | 714 KB |
| Up to 3 A switching step-down regulators | 1.0 | 739 KB |
Brochures
| Description | Version | Size |
|---|---|---|
| Brochure Power management guide | 05.2016 | 4 MB |
Sample & Buy
| Part Number | Package | Packing Type | Unit Price (US$) * | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|---|---|---|---|---|---|---|
| A5970ADTR | SO-8 | Tape And Reel | 1.363 | 1000 | NEC | EAR99 | MALAYSIA |
| A5970AD | SO-8 | Tube | 1.363 | 1000 | NEC | EAR99 | MALAYSIA |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|
| A5970ADTR | SO-8 | Automotive | Ecopack1 (*) | md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_-wspc-kro7ut20eea-wspc-(a5970adtr)_a_ver2_signed.pdf md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_-wspc-kro7ut20eea-wspc-(a5970adtr)_a_ver2.xml |
| A5970AD | SO-8 | Automotive | Ecopack1 (*) | md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_-wspc-kro7ut20eea-wspc-(a5970adtr)_a_ver2_signed.pdf md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_-wspc-kro7ut20eea-wspc-(a5970adtr)_a_ver2.xml |
- circuit_diagram_14661_thumbnail.png A5970AD
- g-Brake Lights: an adaptive rear lighting system based on the AIS326DQ inertial sensor and the STM8AF5168 MCU A5970D
- Up to 1.5 A step-down switching regulator for automotive applications A5973AD
- Up to 1.5 A step-down switching regulator for automotive applications A5973AD
- Up to 1.5 A step-down switching regulator for automotive applications A5973AD
- Very low drop voltage regulators with inhibit KFXX
- md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_-wspc-kro7ut20eea-wspc-(a5970adtr)_a_ver2_signed.pdf A5970AD
- md_o7-wspc-so-wspc-08-wspc-.15-wspc-jedec_-wspc-kro7ut20eea-wspc-(a5970adtr)_a_ver2.xml A5970AD
