L5970AD

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Up to 1 A step down switching regulator

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Product overview

Description

The L5970AD is a step down monolithic power switching regulator with a switch current limit of 1.5A so it is able to deliver more than 1A DC current to the load depending on the application conditions. The output voltage can be set from 1.235V to 35V.
The device uses an internal P-Channel D-MOS transistor (with a typical RDSON of 200mΩ) as switching element to avoid the use of bootstrap capacitor and guarantee high efficiency.
An internal oscillator fixes the switching frequency at 500KHz to minimize the size of external components. 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.
  • All features

    • INHIBIT FOR ZERO CURRENT CONSUMPTION
    • INTERNAL CURRENT LIMITING
    • PROTECTION AGAINST FEEDBACK DISCONNECTION
    • SYNCHRONIZATION
    • THERMAL SHUTDOWN
    • VOLTAGE FEEDFORWARD
    • 500KHz INTERNALLY FIXED FREQUENCY
    • 1.5A INTERNAL SWITCH
    • 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 1.235V TO 35V

Circuit Diagram

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STMicroelectronics - L5970AD

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L5970AD
Active
SO-8 Industrial Ecopack2
L5970ADTR
Active
SO-8 Industrial Ecopack2

L5970AD

Package:

SO-8

Material Declaration**:

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L5970ADTR

Package:

SO-8

Material Declaration**:

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

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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Input Specification
Input Specification
V
This option is required. And must be less than or equal to Volt. Max [V]
V
This option is required. And must be greater than or equal to Volt. Min [V]
Output
V
this option is required
A
this option is required
Output Power: 0

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
L5970ADTR No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel SO-8 -40 150 CHINA
L5970AD Available at 1 distributors

Distributor availability ofL5970AD

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 815 1 Buy from Distributor

Distributor reported inventory date: 2022-05-15

Distributor Name

MOUSER

Stock

815

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-05-15

Active
EAR99 NEC Tube SO-8 -40 150 CHINA

L5970ADTR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

Country of Origin

CHINA

L5970AD

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofL5970AD

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 815 1 Buy from Distributor

Distributor reported inventory date: 2022-05-15

Distributor Name

MOUSER

Stock

815

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-05-15

ECCN (EU)

NEC

Packing Type

Tube

Package

SO-8

Operating Temperature (°C)

(min)

-40

(max)

150

Budgetary Price (US$)* / Qty

Country of Origin

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