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UC3843BD1

UC3843BD1
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For Reference Only

Part Number UC3843BD1
OEMstron Part # UC3843BD1
Manufacturer STMicroelectronics
Category SemiconductorsPower Management ICsVoltage Regulators - DC DC Switching Controllers
Description IC REG CTRLR BOOST/FLYBACK 8SO
Lifecycle Active
RoHS No RoHS Information
EDA/CAD Models UC3843BD1 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 Wire Transfer, UnionPay, PayPal, Credit Card, Visa, MasterCard, AmericanExpress, Discover, WesternUnion, MoneyGram
Shipping DHL, UPS, FedEx, TNT, EMS, & More Express Delivery

UC3843BD1 Specifications

Part Number UC3843BD1
Brand STMicroelectronics
Lifecycle Active
RoHS No RoHS Information
Product Line Semiconductors
Category Power Management ICs
Subcategory Voltage Regulators - DC DC Switching Controllers
Manufacturer STMicroelectronics
Series -
Output Type Transistor Driver
Function Step-Up, Step-Up/Step-Down
Output Configuration Positive
Topology Boost, Flyback
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 7.6V ~ 30V
Frequency - Switching Up to 500kHz
Duty Cycle (Max) 96%
Synchronous Rectifier No
Clock Sync No
Serial Interfaces -
Control Features Frequency Control
Operating Temperature 0°C ~ 70°C (TJ)
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SO

UC3843BD1 Documents

UC3843BD1, UC3843BD1 Datasheet (Total Pages: 15, Size: 233.69 KB)
E-UC3845BN Datasheet CoverE-UC3845BN Datasheet Page 2E-UC3845BN Datasheet Page 3E-UC3845BN Datasheet Page 4E-UC3845BN Datasheet Page 5E-UC3845BN Datasheet Page 6E-UC3845BN Datasheet Page 7E-UC3845BN Datasheet Page 8E-UC3845BN Datasheet Page 9E-UC3845BN Datasheet Page 10E-UC3845BN Datasheet Page 11E-UC3845BN Datasheet Page 12E-UC3845BN Datasheet Page 13E-UC3845BN Datasheet Page 14
Industry Leaders in Quality

Industry Leaders in Quality

Cooperation comes from trust,

And trust is based on quality.

Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number Description Stock

UC3843BD1R2G

D# V72:2272_07297580

ON Semiconductor

Current Mode PWM Controller 1A 500kHz 8-Pin SOIC N T/R

RoHS: Compliant
Americas - 0

UC3843BD1

D# V79:2366_17794393

STMicroelectronics

Current Mode PWM Controller 1A 500kHz 8-Pin SO N Tube

RoHS: Compliant
Americas - 1

UC3843BD1G

D# E02:0323_00018817

ON Semiconductor

Current Mode PWM Controller 1A 500kHz 8-Pin SOIC N Rail

RoHS: Compliant
Europe - 238

UC3843BD1013TR

D# V36:1790_06568298

STMicroelectronics

Current Mode PWM Controller 1A 500kHz 8-Pin SO N T/R

RoHS: Compliant
Americas - 10000
Part Number Description Stock

UC3843BD1R2G

D# UC3843BD1R2G

ON Semiconductor

Current Mode PWM Controller 1A 8-Pin SOIC N T/R - Tape and Reel (Alt: UC3843BD1R2G)

Americas - 0

UC3843BD1

D# UC3843BD1

STMicroelectronics

Current Mode PWM Controller 1A 8-Pin SO N - Rail/Tube (Alt: UC3843BD1)

Americas - 4000

UC3843BD1R2

D# UC3843BD1R2

ON Semiconductor

ANA SMPS PWM CONTROLLER - Bulk (Alt: UC3843BD1R2)

RoHS: Not Compliant
Americas - 4985

UC3843BD1G

D# UC3843BD1G

ON Semiconductor

Current Mode PWM Controller 1A 8-Pin SOIC N Rail - Bulk (Alt: UC3843BD1G)

Americas - 90707

E-UC3843BD1013TR

D# E-UC3843BD1013TR

STMicroelectronics

Current Mode PWM Controller 1A 8-Pin SO N T/R - Tape and Reel (Alt: E-UC3843BD1013TR)

RoHS: Compliant
Americas - 0

UC3843BD1013TR

D# UC3843BD1013TR

STMicroelectronics

Current Mode PWM Controller 1A 8-Pin SO N T/R - Tape and Reel (Alt: UC3843BD1013TR)

Americas - 12500
Part Number Description Stock

UC3843BD1R2G

D# UC3843BD1R2G

ON Semiconductor

Current Mode PWM Controller 1A 8-Pin SOIC N T/R (Alt: UC3843BD1R2G)

Asia - 0

UC3843BD1

D# UC3843BD1

STMicroelectronics

Current Mode PWM Controller 1A 8-Pin SO N (Alt: UC3843BD1)

Asia - 0

UC3843BD1013TR

D# UC3843BD1013TR

STMicroelectronics

Current Mode PWM Controller 1A 8-Pin SO N T/R (Alt: UC3843BD1013TR)

Asia - 0
Part Number Description Stock

UC3843BD1R2G

D# UC3843BD1R2G

ON Semiconductor

Current Mode PWM Controller 1A 8-Pin SOIC N T/R (Alt: UC3843BD1R2G)

Europe - 0

UC3843BD1

D# UC3843BD1

STMicroelectronics

Current Mode PWM Controller 1A 8-Pin SO N (Alt: UC3843BD1)

Europe - 12888

UC3843BD1G

D# UC3843BD1G

ON Semiconductor

Current Mode PWM Controller 1A 8-Pin SOIC N Rail (Alt: UC3843BD1G)

Europe - 0

UC3843BD1013TR

D# UC3843BD1013TR

STMicroelectronics

Current Mode PWM Controller 1A 8-Pin SO N T/R (Alt: UC3843BD1013TR)

Europe - 7500
Part Number Description Stock

UC3843BD13TR

STMicroelectronics

60

UC3843BD1R2G

ON Semiconductor

2354

UC3843BD1

.

292

UC3843BD1R2

ON Semiconductor

2500

UC3843BD1013TR

STMicroelectronics

7798
Part Number Description Stock

UC3843BD1R2G

ON Semiconductor

- Tape and Reel

65000

UC3843BD1

ON Semiconductor

ANA SMPS PWM CONTROLLER

2058

E-UC3843BD1

STMicroelectronics

IC REG CTRLR BST FLYBK ISO 8SOIC

Contact Us

UC3843BD1R2

ON Semiconductor

- Tape and Reel

65000

UC3843BD1G

ON Semiconductor

ANA SMPS PWM CONTROLLER

2058

E-UC3843BD1013TR

STMicroelectronics

IC REG CTRLR BST FLYBK ISO 8SOIC

Contact Us

UC3843BD1013TR

STMicroelectronics

Min Qty 2500

70000
Part Number Description Stock

UC3843BD1R2G

ON Semiconductor

Flyback Regulator Positive, Isolation Capable Output Step-Up/Step-Down DC-DC Controller IC 8-SOIC

7595

UC3843BD1G

ON Semiconductor

SOIC-8_150mil DC-DC Converters RoHS

2033

UC3843BD1013TR

STMicroelectronics

Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up/Step-Down DC-DC Controller IC 8-SO

1670
Part Number Description Stock

UC3843BD1R2G

D# UC3843BD1R2GOSTR-ND

ON Semiconductor

IC REG CTRLR FLYBACK 8SOIC

On Order

UC3843BD1

D# 497-15689-5-ND

STMicroelectronics

IC REG CTRLR BOOST/FLYBACK 8SO

2322 In Stock

E-UC3843BD1

D# E-UC3843BD1-ND

STMicroelectronics

IC REG CTRLR BOOST/FLYBACK 8SOIC

Limited Supply - Call

UC3843BD1R2

D# 2156-UC3843BD1R2-ONTR-ND

Rochester Electronics LLC

SWITCHING CONTROLLER

4985 In Stock

UC3843BD1G

D# UC3843BD1GOS-ND

ON Semiconductor

IC REG CTRLR FLYBACK 8SOIC

8367 In Stock

E-UC3843BD1013TR

D# 497-4603-6-ND

STMicroelectronics

IC REG CTRLR BOOST/FLYBACK 8SOIC

Limited Supply - Call

UC3843BD1013TR

D# 497-3681-2-ND

STMicroelectronics

IC REG CTRLR BOOST/FLYBACK 8SOIC

On Order
Part Number Description Stock

UC3843BD1013

-

In stock shipping within 2days

120

UC3843BD1R2

-

In stock shipping within 2days

120

UC3843BD1013TR

STMicroelectronics

In stock shipping within 2days

42125
Part Number Description Stock

UC3843BD1R2G

D# 2534257

ON Semiconductor

PWM CTRL, CURRENT MODE, 30V, SOIC-8

RoHS: Compliant
Min Qty: 5
Container: Cut Tape
399

UC3843BD1

D# 2806979

STMicroelectronics

PWM CONTROLLER, 500KHZ, 15V, SOIC-8

RoHS: Compliant
Min Qty: 1
Container: Each
1705

UC3843BD1G

D# 2102563

ON Semiconductor

IC, CURRENT MODE CONTROLLER, 15V, SOIC-8

RoHS: Compliant
Min Qty: 1
Container: Each
6956

UC3843BD1013TR

D# 2806980

STMicroelectronics

PWM CONTROLLER, 500KHZ, 15V, SOIC-8

RoHS: Compliant
Min Qty: 1
Container: Cut Tape
567
Part Number Description Stock

UC3843BD1G

NEW AND ORGINAL. ISRAEL W.HOUSE

195
Part Number Description Stock

UC3843BD1R2G

ON Semiconductor

UC3843B Series 30 V 275 kHz High Performance Current Mode Controller - SOIC-8

RoHS: Compliant
pbFree: Yes
0 Reel

UC3843BD1G

ON Semiconductor

UC3843B Series 30 V 275 kHz High Performance Current Mode Controller - SOIC-8

RoHS: Compliant
pbFree: Yes
10780 Tube

UC3843BD1013TR

STMicroelectronics

UC3843B Series 30 V 17 mA High Performance Current Mode PWM Controller - SOIC-8

RoHS: Compliant
pbFree: Yes
0 Reel
Part Number Description Stock

UC3843BD13TR

STMicroelectronics

OEM/CM QUOTES ONLY | NO BROKERS

71

UC3843BD1013

STMicroelectronics

OEM/CM QUOTES ONLY | NO BROKERS

1477

UC3843BD1R2G

On Semiconductor

OEM/CM QUOTES ONLY | NO BROKERS

59751

UC3843BD1

STMicroelectronics

OEM/CM QUOTES ONLY | NO BROKERS

15120

2UC3843BD1R2G

ON Semiconductor

OEM/CM QUOTES ONLY | NO BROKERS

2625

UC3843BD1R2

Rochester Electronics LLC

OEM/CM QUOTES ONLY | NO BROKERS

5932

EUC3843BD1013TR

ST MICROELECTRONICS SEMI

OEM/CM QUOTES ONLY | NO BROKERS

388

UC3843BD1G

ON Semiconductor

OEM/CM QUOTES ONLY | NO BROKERS

57025

UC3843BD12

STM Microelectronics

OEM/CM QUOTES ONLY | NO BROKERS

119

UC3843BD1R2ONSEMI

ON Semiconductor

OEM/CM QUOTES ONLY | NO BROKERS

2649

2UC3843BD1013TR

STMicroelectronics

OEM/CM QUOTES ONLY | NO BROKERS

10502

UC3843BD1013TR

OEM/CM QUOTES ONLY | NO BROKERS

119000
Part Number Description Stock

UC3843BD1013TR

Texas Instruments

OEM/CM ONLY

397
Part Number Description Stock

UC3843BD1013TR

STMicroelectronics

UC3843BD1013TR

1000
Part Number Description Stock

UC3843BD1R2G

ON Semiconductor

In Stock

2354

UC3843BD1

ON Semiconductor

In stock

2084

UC3843BD1013TR

ST Microwave Corporation

In stock

7798
Part Number Description Stock

UC3843BD1R2G

D# C16414

ON Semiconductor

22774

UC3843BD1G

D# C160679

ON Semiconductor

2033
Part Number Description Stock

UC3843BD1G

ON Semiconductor

in stock - can ship the same day

100
Part Number Description Stock

UC3843BD1013

STMicroelectronics

OEM/CM Immediate delivery

30000

UC3843BD1-LF

STMicroelectronics

OEM/CM Immediate delivery

3780

UC3843BD1R2G

ON Semiconductor

OEM/CM Immediate delivery

30000

UC3843BD1R2G/NCV3843BVD1R2G

ON Semiconductor

OEM/CM Immediate delivery

333

UC3843BD1

STMicroelectronics

OEM/CM Immediate delivery

131

UC3843BD1013TR

STMicroelectronics

OEM/CM Immediate delivery

38270
Part Number Description Stock

UC3843BD1

D# 511-UC3843BD

STMicroelectronics

Switching Controllers 0.5mA Current Mode

RoHS: Compliant
1522

UC3843BD1G

D# 863-UC3843BD1G

ON Semiconductor

Switching Controllers 52kHz 1A Current PWM w/96% Duty Cycle Max

RoHS: Compliant
5727
Part Number Description Stock

UC3843BD1

D# XSKDRABS0022731

STMicroelectronics

SO 8/C/HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

6488

UC3843BD1G

D# XSCRSN000010064

ON SEMICONDUCTOR

1898

UC3843BD1013TR

D# XSKDRABS0022732

STMicroelectronics

SO 08 .15 JEDE/OFF LINE CMOD PW

5000
Part Number Description Stock

UC3843BD1R2G

D# 38AH3120

ON Semiconductor

ANA SMPS PWM CONTROLLER ROHS COMPLIANT: YES

RoHS: Compliant
Min Qty: 2500
Container: TAPE & REEL - FULL
0

UC3843BD1

D# 45AC7922

STMicroelectronics

PWM CONTROLLER, 500KHZ, 15V, SOIC-8, Input Voltage:-, Output Voltage:-, Output Current:1A, Supply Voltage Min:11V, Supply Voltage Max:30V, Controller IC Case Style:SOIC, No. of Pins:8Pins, Frequency:500kHz, Product Range:-, MSL:- RoHS Compliant: Yes

RoHS: Compliant
Min Qty: 1
Container: Bulk
314

UC3843BD1G.

D# 26AC5109

ON Semiconductor

ANA SMPS PWM CONTROLLER ROHS COMPLIANT: YES

RoHS: Compliant
Min Qty: 98
Container: Bulk
2104

UC3843BD1G

D# 45J2379

ON Semiconductor

CURRENT MODE PWM CONTROLLER, 25V, 8-SOIC, Input Voltage:-, Output Voltage:13.4V, Output Current:200mA, Supply Voltage Min:12V, Supply Voltage Max:25V, Controller IC Case Style:SOIC, No. of Pins:8Pins, Frequency:52kHz, Product Range:-RoHS Compliant: Yes

RoHS: Compliant
Min Qty: 1
Container: Bulk
1136

UC3843BD1013TR

D# 45AC7923

STMicroelectronics

PWM CONTROLLER, 500KHZ, 15V, SOIC-8, Input Voltage:-, Output Voltage:-, Output Current:1A, Supply Voltage Min:11V, Supply Voltage Max:30V, Controller IC Case Style:SOIC, No. of Pins:8Pins, Frequency:500kHz, Product Range:-, MSL:- RoHS Compliant: Yes

RoHS: Compliant
Min Qty: 1
Container: Cut Tape
59
Part Number Description Stock

UC3843BD1R2G

D# NS-UC3843BD1R2G

ON Semiconductor

OEM/CM ONLY

2969

UC3843BD1

D# NS-UC3843BD1

ON Semiconductor

OEM/CM ONLY

4737

UC3843BD1R2

D# NS-UC3843BD1R2

ON Semiconductor

OEM/CM ONLY

2672

UC3843BD1G

D# NS-UC3843BD1G

ON Semiconductor

OEM/CM ONLY

1751

E-UC3843BD1013TR

D# NS-E-UC3843BD1013TR

STMicroelectronics

OEM/CM ONLY

3838

UC3843BD1013TR

D# NS-UC3843BD1013TR

STMicroelectronics

OEM/CM ONLY

20039
Part Number Description Stock

UC3843BD13TR

STMicroelectronics

48

UC3843BD1

STMicroelectronics

Swithed-Mode Power Supply Controller, Current Mode Type, Bi-Polar, 8 Pin, Plastic, SOP

2121

UC3843BD1R2

ON Semiconductor

210

UC3843BD1013TR

STMicroelectronics

IC CTRLR PWM CURR-MODE HP 8-SOIC

2500
Part Number Description Stock

UC3843BD1

D# UC3843BD1

STMicroelectronics

Semiconductor

2194
Part Number Description Stock

UC3843BD1R2G

D# 8084012

ON Semiconductor

ON Semiconductor UC3843BD1R2G, PWM Current Mode Controller, 1 A, 275 kHz, 30 V, 8-Pin SOIC, PK

Min Qty: 25
Container: Package
50

UC3843BD1G

D# 6899954

ON Semiconductor

ON Semiconductor UC3843BD1G, PWM Current Mode Controller, 1 A, 500 kHz, 8-Pin SOIC, PK

Min Qty: 2
Container: Package
576
Part Number Description Stock

UC3843BD1

ON Semiconductor

UC3843 Current-Mode PWM Controller

RoHS: Compliant
308

UC3843BD1R2

ON Semiconductor

UC3843 Current-Mode PWM Controller

RoHS: Not Compliant
4985

UC3843BD1G

ON Semiconductor

UC3843 Current-Mode PWM Controller

RoHS: Compliant
90707
Part Number Description Stock

UC3843BD13TR

STMicroelectronics

OEM/CM ONLY

76

UC3843BD1013

STMicroelectronics

OEM/CM ONLY

1257

UC3843BD1R2G

ON Semiconductor

OEM/CM ONLY

42485

UC3843BD1SO8

OEM/CM ONLY

221

UC3843BD1

SGS Semiconductor Ltd

OEM/CM ONLY

14820

UC3843BD1R2

ON Semiconductor

OEM/CM ONLY

6798

EUC3843BD1013TR

STMicroelectronics

OEM/CM ONLY

353

UC3843BD1R2 ONSEMI

ON Semiconductor

OEM/CM ONLY

2242

UC3843BD1G

ON Semiconductor

OEM/CM ONLY

30016

UC3843BD12

STMicroelectronics

OEM/CM ONLY

116

2UC3843BD1013TR

STMicroelectronics

OEM/CM ONLY

9389

UC3843BD1013TR

STMicroelectronics

OEM/CM ONLY

18281
Part Number Description Stock

UC3843BD1013

STMicroelectronics

IN stock Immediate delivery

29985

UC3843BD1-LF

STMicroelectronics

IN stock Immediate delivery

3795

UC3843BD1R2G

ON Semiconductor

IN stock Immediate delivery

29985

UC3843BD1R2G/NCV3843BVD1R2G

ON Semiconductor

IN stock Immediate delivery

328

UC3843BD1

STMicroelectronics

IN stock Immediate delivery

126

UC3843BD1013TR

STMicroelectronics

IN stock Immediate delivery

38255
Part Number Description Stock

UC3843BD1-LF

STMicroelectronics

shipping today

3781

UC3843BD1R2G

ON Semiconductor

shipping today

149996

UC3843BD1

STMicroelectronics

shipping today

130

UC3843BD103TR

STMicroelectronics

shipping today

48496

UC3843BD1R2

Motorola Mobility LLC

shipping today

1424

UC3843BD1G

STMicroelectronics

shipping today

478
Part Number Description Stock

UC3843BD1

D# 36316148

STMicroelectronics

Current Mode PWM Controller 1A 500kHz 8-Pin SO N Tube

RoHS: Compliant
Americas - 314

UC3843BD1G

D# 26621046

ON Semiconductor

Current Mode PWM Controller 1A 500kHz 8-Pin SOIC N Rail

RoHS: Compliant
Americas - 20384

UC3843BD1013TR

D# 36284616

STMicroelectronics

Current Mode PWM Controller 1A 500kHz 8-Pin SO N T/R

RoHS: Compliant
Americas - 10000
Part Number Description Stock

UC3843BD1

STMicroelectronics

RFQ

11564

E-UC3843BD1

STMicroelectronics

RFQ

10775
Part Number Description Stock

UC3843BD1R2G

ON Semiconductor

IC REG CTRLR FLYBACK 8SOIC

483063

UC3843BD1

STMicroelectronics

IC REG CTRLR BOOST/FLYBACK 8SO

3400

UC3843BD1013TR

STMicroelectronics

IC REG CTRLR BOOST/FLYBACK 8SOIC

119367
Part Number Description Stock

UC3843BD1R2G

D# 2534257

ON Semiconductor

PWM CTRL, CURRENT MODE, 30V, SOIC-8

RoHS: Compliant
Min Qty: 1
Container: Cut Tape
0

UC3843BD1

D# 2806979

STMicroelectronics

PWM CONTROLLER, 500KHZ, 15V, SOIC-8

RoHS: Compliant
Min Qty: 1
Container: Each
0

UC3843BD1G

D# 1705973

ON Semiconductor

RoHS: Compliant
Min Qty: 1
Container: Each
1141

UC3843BD1013TR

D# 2806980

STMicroelectronics

PWM CONTROLLER, 500KHZ, 15V, SOIC-8

RoHS: Compliant
Min Qty: 1
Container: Cut Tape
567

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In Stock5,276 - More on Order
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Pricing (USD)

Qty.Unit PriceExt. 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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