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STMicroelectronics, L5970D Step-Down Switching Regulator 1A Adjustable, 1.2 → 35 V 8-Pin, SOIC

L5970D STMicroelectronics, Step-Down Switching Regulator 1A Adjustable, 1.2 → 35 V 8-Pin, SOIC
L5970D
L5970D STMicroelectronics, Step-Down Switching Regulator 1A Adjustable, 1.2 → 35 V 8-Pin, SOIC
STMicroelectronics

Product Information

Dimensions:
5 x 4 x 1.25mm
Width:
4mm
Maximum Output Voltage:
35 V
Load Regulation:
15 mV
Output Type:
Adjustable
Maximum Switching Frequency:
275 kHz
Efficiency:
90%
Package Type:
SO
Regulator Function:
Buck Controller
Maximum Operating Temperature:
+150 °C
Number of Outputs:
1
Line Regulation:
10 mV
Length:
5mm
Minimum Output Voltage:
1.2 V
Pin Count:
8
Mounting Type:
Surface Mount
Height:
1.25mm
Minimum Operating Temperature:
-40 °C
Minimum Input Voltage:
4.4 V
Maximum Output Current:
1A
Maximum Input Voltage:
36 V
Switching Regulator:
Yes
Synchronous Rectifier:
No
HTSUS:
8542.39.0001
RoHS Status:
ROHS3 Compliant
Operating Temperature:
-40°C ~ 150°C (TJ)
Package / Case:
8-SOIC (0.154", 3.90mm Width)
Voltage - Input (Min):
4.4V
Function:
Step-Down
Voltage - Output (Min/Fixed):
1.2V
Frequency - Switching:
250kHz
REACH Status:
REACH Unaffected
Output Type:
Adjustable
edacadModel:
L5970D Models
Current - Output:
1A
Voltage - Input (Max):
36V
edacadModelUrl:
/en/models/585936
Voltage - Output (Max):
35V
Topology:
Buck
Moisture Sensitivity Level (MSL):
3 (168 Hours)
standardLeadTime:
12 Weeks
Mounting Type:
Surface Mount
Series:
-
Supplier Device Package:
8-SOIC
Packaging:
Tube
Base Product Number:
L5970
Output Configuration:
Positive
Number of Outputs:
1
ECCN:
EAR99
RoHs Compliant
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The STMicroelectronics L5970D is a step‑down switching regulator designed for high performance in compact form. It supports input voltages from 4.4 V up to 36 V and delivers up to 1 A of output current with an adjustable output range from 1.2 V to 35 V. With an internally fixed 250 kHz switching frequency and a low R_DS(on) internal P‑channel D‑MOS switch, the L5970D offers efficient power conversion and compact external component sizing. It also includes features such as zero‑load current operation, an inhibit pin for minimum standby current, and thermal/shutdown protections, making it suitable for embedded, industrial and consumer applications.

What Makes the STMicroelectronics L5970D Switching Regulator Reliable and Efficient?

The L5970D switching regulator integrates a P‑channel D‑MOS switch with typically 250 mΩ R_DS(on), minimising losses and external component demands. The fixed‑frequency switching and built‑in protections (short‑circuit current limit, thermal shutdown, feedback disconnection protection) offer robust and efficient regulation under varying conditions.

Standout Features of the STMicroelectronics L5970D:

  • Output current capability up to 1 A.
  • Input voltage range: 4.4 V to 36 V — wide range for 5 V or higher bus systems.
  • Output voltage adjustable from 1.2 V to 35 V — flexible for many applications.
  • Fixed internal oscillator at ~250 kHz switching frequency for compact design.
  • Inhibit pin enabling very low standby current.
  • Low‑dropout operation (100% duty cycle) enabling high output even when the input closely matches the output.
  • Built‑in protections: current limit, thermal shutdown, and feedback disconnection guard.

pdf icon
Datasheet(Technical Reference)
pdf icon
L5970D(Datasheets)

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FAQs

Yes. We ship L5970D Internationally to many countries around the world.
Yes. You can also search L5970D on website for other similar products.
We accept all major payment methods for all products including ET13836333. Please check your shopping cart at the time of order.
We use our internationally recognized delivery partners UPS/DHL. Collection of ET13836333 can also be arranged for the customer by international shipments through contacting our customer support team. Additionally, you can also search"STMicroelectronics" products on our website by using Enrgtech's Unique Manufacturing Part Number ET13836333.
You can order STMicroelectronics brand products with L5970D directly through our website or call us at +44 (0) 3303 800 157 or email our support team at sales@enrgtech.co.uk.
Yes. Our products in Voltage Regulators - DC DC Switching Regulators category are shipped in lowest possible time.
You will get a confirmation email regarding your order of STMicroelectronics, L5970D Step-Down Switching Regulator 1A Adjustable, 1.2 → 35 V 8-Pin, SOIC. You can also check on our website or by contacting our customer support team for further order details on STMicroelectronics, L5970D Step-Down Switching Regulator 1A Adjustable, 1.2 → 35 V 8-Pin, SOIC.
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