Product Information

STEVAL-ISA154V1

STEVAL-ISA154V1 electronic component of STMicroelectronics

Datasheet
Power Management IC Development Tools 0.7 A step-down switching regulator evaluation board based on the L5980

Manufacturer: STMicroelectronics
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1: USD 59.535 ea
Line Total: USD 59.535

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MOQ: 1  Multiples: 1
Pack Size: 1
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Ships to you between Thu. 04 Apr to Wed. 10 Apr

MOQ : 1
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STEVAL-ISA154V1
STMicroelectronics

1 : USD 62.0419

0 - Global Stock


Ships to you between Wed. 10 Apr to Fri. 12 Apr

MOQ : 1
Multiples : 1

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STEVAL-ISA154V1
STMicroelectronics

1 : USD 48.9329

     
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STEVAL-ISA154V1 0.7 A step-down switching regulator evaluation board based on the L5980 Data brief Description The STEVAL-ISA154V1 product evaluation board provides the design engineer with a fully functional step-down switching regulator with an output current of up to 0.7 A. The STEVAL- ISA154V1 integrates STMicroelectronics L5980 step-down switching regulator together with all the external components required for a typical application. The rated voltage of the input capacitor and the Schottky diode rectifier repetitive peak reverse voltage are both 25 V, making the board capable of covering the entire 2.9 V - 18 V input voltage range of the L5980 device. The board features an external resistor divider (R1 and R2) designed for an output Features voltage of 3.3 V. The output voltage can be set to a level from 0.6 V up to the rated voltage of the 0.7 A DC output current output capacitor (16 V). The compensation 2.9 V to 18 V input voltage network on the evaluation board allows the use of Output voltage adjustable from 0.6 V to 16 V an MLCC as output filter to keep the loop stable. 250 kHz switching frequency, programmable The inductor saturation current and forward up to 1 MHz current of the Schottky diode are within the Internal soft-start and inhibit current limit values. The switching frequency on Low dropout operation: 100% duty cycle the board is set to 500 kHz by means of the R5 Zero-load current operation resistor connected to pin Fsw. Overcurrent and thermal protection VFQFPN8 (3 x 3 mm) package April 2014 DocID026204 Rev 1 1/4 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagram STEVAL-ISA154V1 1 Schematic diagram Figure 1: STEVAL-ISA154V1 circuit schematic L1 15 H VIN = 3.3 V to 18 V Vout = 3.3 V VCC OUT 8 D1 INH SYNCH 2 3 STPS2L25U L5980 C2 GND 7 R1 4.99K 22 F FB C1 C6 5 6 4 C4 10nF 10 F 68 n F COMP FSW C3 3.3nF R3 180 R4 3.9K R5 100 K R2 1.1K C5 150 pF GSPG0904141630SG 2/4 DocID026204 Rev 1

Tariff Desc

8543.70.00 Other machines and apparatus Free
13 Signal processors (graphic equalisers, crossovers etc.) 91 Other Free

9027.10.00 Instruments and apparatus for physical or chemical analysis (eg, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes Free

9031.80.00 MEASURING OR CHECKING INSTRUMENTS, APPLIANCES AND MACHINES, NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER; PROFILE PROJECTORS Other instruments, appliances and machines Free

9030.31.00 Oscilloscopes, spectrum analysers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of 9028; instruments and apparatus for measuring or detecting alpha, beta, gamma, x-ray, cosmic or other ionising radiations.
Other instruments and apparatus, for measuring or checking voltage, current, resistance or power Multimeters without a recording device Free

8473.30.00 Parts and accessories of the machines of 8471 AUTOMATIC DATA PROCESSING MACHINES AND UNITS THEREOF; MAGNETIC OR OPTICAL READERS, MACHINES FOR TRANSCRIBING DATA ONTO DATA MEDIA IN CODED FORM AND MACHINES FOR PROCESSING SUCH DATA, NOT ELSEWHERE SPECIFIED OR INCLUDED:
.Other 71 No Weighing less than 1kg Free

8537 BOARDS, PANELS, CONSOLES, DESKS, CABINETS AND OTHER BASES, EQUIPPED WITH TWO OR MORE APPARATUS OF 8535 OR 8536, FOR ELECTRIC CONTROL OR THE DISTRIBUTION OF ELECTRICITY, INCLUDING THOSE INCORPORATING INSTRUMENTS OR APPARATUS OF CHAPTER 90, AND NUMERICAL CONTROL APPARATUS, OTHER THAN SWITCHING APPARATUS OF 8517:
8538 PARTS SUITABLE FOR USE SOLELY OR PRINCIPALLY WITH THE APPARATUS OF 8535, 8536 OR 8537:
8538.10.10 22 For programmable controllers Free
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