Product Information

ST1S50PUR

ST1S50PUR electronic component of STMicroelectronics

Datasheet
Voltage Regulators - Switching Regulators 4A Monolithic synchronous step-down converter with high efficiency at light load
Manufacturer: STMicroelectronics
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

3000: USD 1.3221 ea
Line Total: USD 3966.3

52380 - Global Stock
Ships to you between
Fri. 17 May to Thu. 23 May
MOQ: 3000  Multiples: 3000
Pack Size: 3000

 More Buying Options & Price Grid(s)

Availability Price Quantity
694 - WHS 1


Ships to you between Fri. 17 May to Thu. 23 May

MOQ : 58
Multiples : 1

Stock Image

ST1S50PUR
STMicroelectronics

58 : USD 1.7128
100 : USD 1.6786

2328 - WHS 2


Ships to you between Fri. 17 May to Thu. 23 May

MOQ : 6
Multiples : 1

Stock Image

ST1S50PUR
STMicroelectronics

6 : USD 1.7775
10 : USD 1.7357
25 : USD 1.5869
100 : USD 1.3918
250 : USD 1.3639

52380 - WHS 3


Ships to you between Fri. 17 May to Thu. 23 May

MOQ : 3000
Multiples : 3000

Stock Image

ST1S50PUR
STMicroelectronics

3000 : USD 1.3221

Read More Specifications

     
Manufacturer
Product Category
Mounting Style
Package / Case
Output Voltage
Output Current
Number of Outputs
Input Voltage MAX
Topology
Input Voltage MIN
Switching Frequency
Minimum Operating Temperature
Maximum Operating Temperature
Series
Operating Temperature Range
Supply Current
Type
Brand
Shutdown
Supply Voltage - Min
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Additional Infomation About Product

ST1S50 4 A monolithic synchronous step-down switching converter with high efficiency at light load Datasheet - production data Applications Point of load for: STB, TVs, gateway Solid state disk drive, Blu-ray, DVD VFDFPN10 P/ASIC/DSP/FPGA core and I/O supplies Features Description 4 A output current The ST1S50 device is a 500 kHz fixed frequency PWM synchronous step-down regulator. The 4.0 V to 18 V input voltage ST1S50 operates from 4.0 V to 18 V input, while it Output voltage adjustable from 0.8 V to 0.88 x regulates an output voltage as low as 0.8 V and V IN up to 0.88 x V . IN 500 kHz switching frequency The ST1S50 device integrates a 95 m high-side High efficiency at light load switch and a 69 m synchronous rectifier allowing very high efficiency with very low output Programmable soft-start and enable voltages. Integrated 95 m and 69 m power MOSFETs The peak current mode control with a special All ceramic capacitor PFM mode enables high efficiency at a light load. Power Good The ST1S50 device is available in a VFDFPN10 Cycle-by-cycle current limiting 3 x 3 x 1 mm - 10 leads package. Short-circuit protection VFDFPN10 3 x 3 x 1 mm - 10 L Figure 1. Application circuit R3 Cbst L VIN VOUT PG BST VINSW SW VINA Cinsw Cina R1 EN SS ST1S50 FB COMP Cout Rc Css R2 GNDA GNDP Cc March 2015 DocID025723 Rev 4 1/29 This is information on a product in full production. www.st.comContents ST1S50 Contents 1 Pin settings 4 1.1 Pin connection 4 1.2 Pin description 4 2 Maximum ratings 5 3 Thermal data . 5 4 Electrical characteristics . 6 5 Functional description . 8 5.1 Programmable soft-start and enable . 9 5.2 Error amplifier and control loop stability . 9 5.3 Overcurrent protection . 13 5.4 Power Good function 14 5.5 Hysteretic thermal shutdown 14 6 Application information . 15 6.1 Input capacitor selection 15 6.2 Inductor selection . 16 6.3 Output capacitor selection 17 6.4 Compensation network selection . 18 6.5 Soft-start capacitor selection 19 6.5.1 Reset time . 19 6.5.2 CSS value . 20 6.6 Thermal dissipation . 20 6.7 Layout consideration 21 6.8 Demonstration board 23 7 Typical characteristics 24 8 Package information 26 VFDFPN10 package information . 26 2/29 DocID025723 Rev 4

HS Compliance

Tariff Desc

8542.31.00 51 No ..Application Specific (Digital) Integrated Circuits (ASIC)

Electronic integrated circuits: Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
Monolithic integrated circuits:

Stmicroelectronics may also be referenced as

C-Max
C-Max (VA)
SG3
ST
ST MICROELECTRONICS
ST2
ST7
STM
STMICRELECTRONICS
STN

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