Product Information

STEVAL-ISA152V1

STEVAL-ISA152V1 electronic component of STMicroelectronics

Datasheet
Power Management IC Development Tools 3.3 V/3 A high efficiency step down DC-DC converter (VIN= 4.5 to 60 V) based on the L7987
Manufacturer: STMicroelectronics
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Price (USD)

1: USD 116.2004 ea
Line Total: USD 116.2

4 - Global Stock
Ships to you between
Fri. 26 Apr to Thu. 02 May
MOQ: 1  Multiples: 1
Pack Size: 1

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4 - Global Stock


Ships to you between Fri. 26 Apr to Thu. 02 May

MOQ : 1
Multiples : 1

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STEVAL-ISA152V1
STMicroelectronics

1 : USD 116.2004

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Tool Is For Evaluation Of
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Output Current
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Additional Infomation About Product

STEVAL-ISA152V1 3.3 V/3 A high efficiency step down DC-DC converter (V = 4.5 to 60 V) based on the L7987 IN Data brief Description The STEVAL-ISA152V1 product evaluation board is a step-down switching power supply based on the L7987 regulator in an HTSSOP16 package. The output voltage can be set starting from 0.8 V. Low drop-out operation, with almost 100% duty cycle, can be achieved. The L7987 is a 61 V, 3 A step-down asynchronous switching regulator with embedded power MOSFET caable of delivering up to 3 A of current, depending on the application conditions. The embedded switch-over feature on the VBIAS pin and the light load management (pulse skipping) are intended to maximize power Features conversion efficiency across the entire load range. 3.3 V output voltage 3 A DC output current The soft-start, current limit threshold and the 4.5 V to 60 V input voltage switching frequency are adjustable for application optimization. 500 kHz switching frequency 3.5 ms programmed soft-start The device includes an internal 250 kHz oscillator VBIAS switch-over for improved efficiency at that can be externally adjusted up to 1.5 MHz light load two L7987 regulators can be synchronized in a 180 out of phase synchronization available 180 out-of-phase configuration for reduced total Open drain PGOOD available input RMS current. Auto recovery overcurrent and thermal protection RoHS compliant May 2014 DocID025489 Rev 1 1/4 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagram STEVAL-ISA152V1 1 Schematic diagram Figure 1: Schematic diagram GSPG08112013DI1045 2/4 DocID025489 Rev 1 R1 NM TP1 PGOOD U1 TP2 R2 100k TP4 7 12 VOUT SYNCH SYNCH PGOOD TP3 J2 2 1 VIN VIN VBIAS 3 0 R3 VIN 15 R4 BOOT C7 0 J1 4 100nF J3 VCC L7987 TP5 5 13 EN L1 10uH EN LX 14 LX 6 R5 68 C8 10nF SS 9 FB 10 FSW R6 620 C9 33nF R7 6.8k 11 8 ILIM TP GND COMP C11 1nF 17 16 D1 R8 R9 STPS3L60 47k NM R10 R11 N.M. 2.2k signal GND power GND TP6 TP7 GND GND C1 4.7uF 100V C2 4.7uF 100V C3 1uF 100V C4 1uF 100V C10 22nF C5 47uF C6 NM

HS Compliance

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

Stmicroelectronics may also be referenced as

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

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