Semiconductors
Passive Components
Sensors
Power
Optoelectronics
For Reference Only
| Part Number | L7981 |
| OEMstron Part # | L7981 |
| Manufacturer | STMicroelectronics |
| Category | Semiconductors › Power Management ICs › Voltage Regulators - DC DC Switching Regulators |
| Description | IC REG BUCK ADJ 3A 8VFQFPN |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | L7981 PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | May 18 - May 23 (Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment |  |
| Shipping |  |
L7981 Specifications
| Part Number | L7981 | |
| Brand | STMicroelectronics | |
| Lifecycle | Active | |
| RoHS | No RoHS Information | |
| Product Line | Semiconductors | |
| Category | Power Management ICs | |
| Subcategory | Voltage Regulators - DC DC Switching Regulators | |
| Manufacturer | STMicroelectronics | |
| Series | - | |
| Function | Step-Down | |
| Output Configuration | Positive | |
| Topology | Buck | |
| Output Type | Adjustable | |
| Number of Outputs | 1 | |
| Voltage - Input (Min) | 4.5V | |
| Voltage - Input (Max) | 28V | |
| Voltage - Output (Min/Fixed) | 0.6V | |
| Voltage - Output (Max) | 28V | |
| Current - Output | 3A | |
| Frequency - Switching | 250kHz ~ 1MHz | |
| Synchronous Rectifier | No | |
| Operating Temperature | -40°C ~ 150°C (TJ) | |
| Mounting Type | Surface Mount | |
| Package / Case | 8-VFDFN Exposed Pad | |
| Supplier Device Package | 8-VFQFPN (3x3) |
L7981 Documents
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Global Supply Chains - Reliable and Authorized Distributor Resources
| Part Number | Description | Stock |
|
L7981TR D# V36:1790_06552986 STMicroelectronics |
Conv DC-DC 4.5V to 28V Synchronous Step Down Single-Out 0.6V to 28V 3A 8-Pin VFQFPN T/R RoHS: Compliant
|
Americas - 0 |
|
L7981A D# E02:0323_03155625 STMicroelectronics |
Conv DC-DC 4.5V to 28V Synchronous Step Down Single-Out 0.6V to 28V 3A 8-Pin HSOP EP Tube RoHS: Compliant
|
Europe - 1900 |
|
L7981ATR D# E02:0323_03155706 STMicroelectronics |
Conv DC-DC 4.5V to 28V Synchronous Step Down Single-Out 0.6V to 28V 3A 8-Pin HSOP EP T/R RoHS: Compliant
|
Europe - 2500 |
|
G3VM351E D# E02:0323_01042916 OMRON Corporation |
Solid State Relay 25mA 1.3V DC-IN 0.1A 280V AC/DC-OUT 6-Pin DIP SMD Stick RoHS: Compliant
|
Europe - 200 |
| Part Number | Description | Stock |
|
L7981TR D# L7981TR STMicroelectronics |
Conv DC-DC Single Step Down 4.5V to 28V 8-Pin VFQFPN T/R - Tape and Reel (Alt: L7981TR) |
Americas - 0 |
|
STEVAL-ISA094V1 D# STEVAL-ISA094V1 STMicroelectronics |
L7981 3A Step-Down Switching Power Supply in HSOP8 Package Demonstration Board (Alt: STEVAL-ISA094V1) RoHS: Compliant
|
Americas - 0 |
|
STEVAL-ISA093V1 D# STEVAL-ISA093V1 STMicroelectronics |
L7981 3A Step-Down Switching Power Supply in QFN Package Demonstration Board (Alt: STEVAL-ISA093V1) RoHS: Compliant
|
Americas - 0 |
|
L7981A D# L7981A STMicroelectronics |
Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP Tube - Rail/Tube (Alt: L7981A) |
Americas - 0 |
|
G3VM351E D# G3VM351E OMRON Corporation |
Relay SSR 50mA 1.3V DC-IN 0.12A 350V AC/DC-OUT 6-Pin PDIP SMT - Rail/Tube (Alt: G3VM351E) RoHS: Compliant
|
Americas - 0 |
|
L7981ATR D# L7981ATR STMicroelectronics |
Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP T/R - Tape and Reel (Alt: L7981ATR) |
Americas - 2500 |
| Part Number | Description | Stock |
|
L7981ATR D# L7981ATR STMicroelectronics |
Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP T/R (Alt: L7981ATR) |
Asia - 0 |
| Part Number | Description | Stock |
|
L7981A D# L7981A STMicroelectronics |
Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP Tube (Alt: L7981A) |
Europe - 800 |
|
G3VM351E D# G3VM351E OMRON Corporation |
Relay SSR 50mA 1.3V DC-IN 0.12A 350V AC/DC-OUT 6-Pin PDIP SMT (Alt: G3VM351E) |
Europe - 0 |
|
L7981ATR D# L7981ATR STMicroelectronics |
Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP T/R (Alt: L7981ATR) |
Europe - 0 |
|
L7981TR D# L7981TR STMicroelectronics |
Conv DC-DC Single Step Down 4.5V to 28V 8-Pin VFQFPN T/R (Alt: L7981TR) |
Europe - 0 |
| Part Number | Description | Stock |
|
BG13641-RP D# 07L7981 Aeromotive Inc |
RP - CABLE W/LOW BULLARD- JKL- |
0 in Stock 3 Available Soon |
| Part Number | Description | Stock |
|
STEVAL-ISA093V1 STMicroelectronics |
L7981, STEP DOWN SMPS, 3A, DEV BOARD |
1 |
|
L7981A STMicroelectronics |
BUCK, 4.5-28V, 3A, 1MHZ, 0.6-28V, 8HSOP |
149 |
|
L7981TR STMicroelectronics |
IC REG BUCK ADJ 3A 8VFQFPN |
Contact Us |
|
STEVAL-ISA094V1 STMicroelectronics |
EVAL BOARD, L7981 ADJ 3A STEP-DOWN REGUL |
Contact Us |
|
L7981 STMicroelectronics |
BUCK, 4.5-28V, 3A, 1MHZ, 0.6-28V, 8HSOP |
149 |
|
L7981ATR STMicroelectronics |
Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP T/R |
1828 |
| Part Number | Description | Stock |
|
L7981ATR STMicroelectronics |
28V 3A SOIC-8_EP_150mil DC-DC Converters RoHS |
4063 |
| Part Number | Description | Stock |
|
STEVAL-ISA093V1 D# 497-12112-ND STMicroelectronics |
BOARD EVAL BUCK REG L7981 |
Limited Supply - Call |
|
L7981A D# 497-16177-5-ND STMicroelectronics |
IC REG BUCK ADJUSTABLE 3A 8HSOP |
1528 In Stock |
|
5100UH 0081000 D# BEL7981-1000-ND Belden Inc |
CBL 2COND 14AWG PO FRPVC |
Temporarily Out of Stock |
|
L7981TR D# 497-10814-1-ND STMicroelectronics |
IC REG BUCK ADJ 3A 8VFQFPN |
3058 In Stock |
|
L7981 D# L7981-ND STMicroelectronics |
IC REG BUCK ADJ 3A 8VFQFPN |
Temporarily Out of Stock |
|
L7981ATR D# 497-10722-1-ND STMicroelectronics |
IC REG BUCK ADJUSTABLE 3A 8HSOP |
15911 In Stock |
|
STEVAL-ILL062V1 D# 497-15182-ND STMicroelectronics |
EVAL BOARD HB LED DVR STP16CPC26 |
6 In Stock |
|
STEVAL-ISA094V1 D# 497-12113-ND STMicroelectronics |
BOARD EVAL BUCK REG L7981 |
19 In Stock |
| Part Number | Description | Stock |
|
L7981ATR STMicroelectronics |
In stock shipping within 2days |
343 |
| Part Number | Description | Stock |
|
L7981A D# 2311339 STMicroelectronics |
VOLTAGE REG, BUCK, 3A, 1MHZ, HSOP-8 RoHS: Compliant
Min Qty: 1
Container: Each
|
139 |
|
L7981ATR D# 2806920RL STMicroelectronics |
DC/DC CONV, BUCK, 250KHZ, HSOP-8 RoHS: Compliant
Min Qty: 1
Container: Reel
|
0 |
|
STEVAL-ISA094V1 D# 2308949 STMicroelectronics |
A, STEP DOWN SMPS, 3A, DEV BOARD RoHS: Compliant
Min Qty: 1
Container: Each
|
3 |
|
L7981TR D# 2806921RL STMicroelectronics |
DC/DC CONV, BUCK, 1MHZ, VFQFPN-8 RoHS: Compliant
Min Qty: 1
Container: Reel
|
0 |
|
STEVAL-ISA093V1 D# 2308948 STMicroelectronics |
STEP DOWN SMPS, 3A, DEV BOARD RoHS: Compliant
Min Qty: 1
Container: Each
|
3 |
| Part Number | Description | Stock |
|
L7981A STMicroelectronics |
3 A step-down switching regulator RoHS: Compliant
pbFree: Yes
|
0 Tube |
|
L7981ATR STMicroelectronics |
L7981 Series 28 V 3 A 1 MHz Step Down Switching Regulator SMT - HSOP-8 RoHS: Compliant
pbFree: Yes
|
0 Reel |
|
L7981TR STMicroelectronics |
RoHS: Compliant
pbFree: Yes
|
0 |
| Part Number | Description | Stock |
|
L7981A STMICROELECTRONICS |
OEM/CM QUOTES ONLY | NO BROKERS |
1772 |
|
EL7981CSP ELANTEC |
OEM/CM QUOTES ONLY | NO BROKERS |
228 |
|
L7981 STMicroelectronics |
OEM/CM QUOTES ONLY | NO BROKERS |
2668 |
|
L7981ATR STMICROELECTRONICS |
OEM/CM QUOTES ONLY | NO BROKERS |
5800 |
| Part Number | Description | Stock |
|
L7981 Maxim Integrated Products |
OEM/CM ONLY |
3737 |
|
L7981A Linear Technology |
OEM/CM ONLY |
729 |
| Part Number | Description | Stock |
|
L7981ATR STMicroelectronics |
OEM/CM Immediate delivery |
30000 |
| Part Number | Description | Stock |
|
L7981A D# 511-L7981A STMicroelectronics |
Switching Voltage Regulators 3A Step-Down Reg 3.7A 4.5 to 28V 1MHz RoHS: Compliant
|
2802 |
|
L7981ATR D# 511-L7981ATR STMicroelectronics |
Switching Voltage Regulators 3 A Step-Down Reg 4.5V to 28V 250 kHz RoHS: Compliant
|
7138 |
|
STEVAL-ISA093V1 D# 511-STEVAL-ISA093V1 STMicroelectronics |
Power Management IC Development Tools 3A Step Down L7981 Demonstration board RoHS: Compliant
|
2 |
|
L7981TR D# 511-L7981TR STMicroelectronics |
Switching Voltage Regulators 3A DC 4.5 V to 28 V Adj 0.6V 250 kHz RoHS: Compliant
|
3740 |
|
STEVAL-ISA094V1 D# 511-STEVAL-ISA094V1 STMicroelectronics |
Power Management IC Development Tools 3A Step Down L7981A Demonstration board RoHS: Compliant
|
20 |
| Part Number | Description | Stock |
|
L7981A D# XSKDRABV0039695 STMicroelectronics |
3 A step-down switching regulator |
600 |
|
L7981ATR D# XSFT00000040848 STMicroelectronics |
2500 |
| Part Number | Description | Stock |
|
L7981ATR D# 45AC7276 STMicroelectronics |
DC/DC CONV, BUCK, 250KHZ, HSOP-8, Topology:Buck (Step Down), Input Voltage Min:4.5V, Input Voltage Max:28V, No. of Outputs:1Outputs, DC / DC Converter IC Case:HSOP, No. of Pins:8Pins, Output Current:3A, Output Voltage Min:600mV RoHS Compliant: Yes RoHS: Compliant
Min Qty: 1
Container: Cut Tape
|
103 |
|
STEVAL-ISA094V1 D# 70W0707 STMicroelectronics |
A, STEP DOWN SMPS, 3A, DEV BOARD, Silicon Manufacturer:STMicroelectronics, Silicon Core Number:L7981, Kit Application Type:Power Management, Application Sub Type:Step Down Switching Regulator, Kit Contents:Demonstration Board L7981, RoHS Compliant: Yes RoHS: Compliant
Min Qty: 1
Container: Bulk
|
3 |
|
L7981A D# 86W0519 STMicroelectronics |
DC-DC Switching Buck (Step Down) Regulator, Adjustable, 4.5V-28Vin, 600mV-28Vout, 3Aout, HSOP-8 RoHS Compliant: Yes RoHS: Compliant
Min Qty: 1
Container: Bulk
|
139 |
|
L7981TR D# 21T2067 STMicroelectronics |
POWER MANAGEMENT RoHS: Not Compliant
Min Qty: 4000
Container: TAPE & REEL - FULL
|
0 |
| Part Number | Description | Stock |
|
L7981TR D# NS-L7981TR STMicroelectronics |
OEM/CM ONLY |
3824 |
|
STEVAL-ISA093V1 D# NS-STEVAL-ISA093V1 STMicroelectronics |
OEM/CM ONLY |
4226 |
|
L7981A D# NS-L7981A STMicroelectronics |
OEM/CM ONLY |
2477 |
|
L7981ATR D# NS-L7981ATR STMicroelectronics |
OEM/CM ONLY |
9179 |
|
EL7981CS D# NS-EL7981CS Elantec Semiconducto |
OEM/CM ONLY |
2179 |
|
EL7981CN D# NS-EL7981CN Elantec Semiconducto |
OEM/CM ONLY |
6399 |
| Part Number | Description | Stock |
|
STEVAL-ISA094V1 D# 1961842 STMicroelectronics |
STMicroelectronics STEVAL-ISA094V1 Demonstration Board Power Supply for L7981 for Step-Down Switching Power Supply, EA Min Qty: 1
Container: Bulk
|
7 |
| Part Number | Description | Stock |
|
L7981A STMicroelectronics |
OEM/CM ONLY |
1762 |
|
L7981 STMicroelectronics |
OEM/CM ONLY |
2316 |
|
L7981ATR STMicroelectronics |
OEM/CM ONLY |
316 |
|
L7981TR STMicroelectronics |
OEM/CM ONLY |
4095 |
|
G3VM351E OMRON Corporation |
OEM/CM ONLY |
7316 |
|
EL7981CSP Elantec (RETIRED) |
OEM/CM ONLY |
214 |
| Part Number | Description | Stock |
|
L7981ATR STMicroelectronics |
IN stock Immediate delivery |
29985 |
| Part Number | Description | Stock |
|
G3VM351E OMRON Corporation |
Solid State Relays - PCB Mount MOSFET SOLID STATE pbFree: Pb-Free
|
Americas - 0 |
| Part Number | Description | Stock |
|
EL7981CN EL |
shipping today |
17 |
|
L7981ATR STMicroelectronics |
shipping today |
896 |
| Part Number | Description | Stock |
|
G3VM351E D# 20028591 OMRON Corporation |
Solid State Relay 25mA 1.3V DC-IN 0.1A 280V AC/DC-OUT 6-Pin DIP SMD Stick RoHS: Compliant
|
Americas - 1800 |
|
L7981A D# 53124905 STMicroelectronics |
Conv DC-DC 4.5V to 28V Synchronous Step Down Single-Out 0.6V to 28V 3A 8-Pin HSOP EP Tube RoHS: Compliant
|
Americas - 1900 |
|
L7981ATR D# 52958567 STMicroelectronics |
Conv DC-DC 4.5V to 28V Synchronous Step Down Single-Out 0.6V to 28V 3A 8-Pin HSOP EP T/R RoHS: Compliant
|
Americas - 2500 |
| Part Number | Description | Stock |
|
L7981A STMicroelectronics |
3 A step-down switching regulator |
3640 |
|
L7981ATR STMicroelectronics |
IC REG BUCK ADJ 3A 8HSOP |
870 |
| Part Number | Description | Stock |
|
STEVAL-ISA094V1 D# 2308949 STMicroelectronics |
A, STEP DOWN SMPS, 3A, DEV BOARD RoHS: Compliant
Min Qty: 1
Container: Each
|
3 |
|
L7981TR D# 2806921 STMicroelectronics |
DC/DC CONV, BUCK, 1MHZ, VFQFPN-8 RoHS: Compliant
Min Qty: 1
Container: Cut Tape
|
4000 |
|
L7981A D# 2311339 STMicroelectronics |
VOLTAGE REG, BUCK, 3A, 1MHZ, HSOP-8 RoHS: Compliant
Min Qty: 1
Container: Each
|
139 |
|
L7981ATR D# 2806920 STMicroelectronics |
DC/DC CONV, BUCK, 250KHZ, HSOP-8 RoHS: Compliant
Min Qty: 1
Container: Cut Tape
|
7501 |
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| Quote Limit | No Limit |
| Lead-Time | Can Ship Immediately |
| Minimum | 1 |
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1 | $ 0.0000 | $ 0.0000 |
| 100 | $ 0.0000 | $ 0.0000 |
| 500 | $ 0.0000 | $ 0.0000 |
| 1000 | $ 0.0000 | $ 0.0000 |
| 2500 | $ 0.0000 | $ 0.0000 |
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