Product overview
Description
The L5970D is a step down monolithic power switching regulator capable to deliver up to 1A at output voltages from 1.2V to 35V.
The device uses an internal P-Channel D-MOS transistor (with a typical Rdson of 250mΩ) as switching element to minimize the size of the external components.
An internal oscillator fixes the switching frequency at 250KHz.
Having a minimum input voltage of 4.4V only, it is particularly suitable for 5V bus, available in all computer related applications.
Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection.
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All features
- Inhibit for zero current consumption
- Internal current limiting
- Protection against feedback disconnection
- Synchronization
- Thermal shutdown
- Voltage feedforward
- 250KHz Internally fixed frequency
- Up to 1A output current
- 3.3V / (±2%) reference voltage
- Operating input voltage from 4.4V to 36V
- Low dropout operation: 100% duty cycle
- Zero load current operation
- Output voltage adjustable from 1.2V to 35V
eDesignSuite
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Power Management Design Center
Power Tree Designer
Specify input/output power for each node in the tree Check for consistency Design each individual node Start your design with the L5970D now
xwith our eDesignSuite online design aid utilities and simulation tools.
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L5970D
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Symbols
Footprints
3D models
All resources
| Resource title | Version | Latest update |
|---|
SPICE models (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 22 Sep 2016 | 22 Sep 2016 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L5970D | Active | SO-8 | Industrial | Ecopack2 | |
| L5970D013TR | Active | SO-8 | Industrial | 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 | 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 | |||||||||||
| L5970D013TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SO-8 | -40 | 150 | CHINA | | ||
| L5970D | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tube | SO-8 | -40 | 150 | CHINA | | ||
(*) 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