Product Information

STEVAL-ISA198V1

STEVAL-ISA198V1 electronic component of STMicroelectronics

Datasheet
Power Management IC Development Tools 2 A step down DC - DC switching regulator (VIN = 4.5 V to 60 V) based on the L7987L

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)

1: USD 40.5076 ea
Line Total: USD 40.51

0 - Global Stock
MOQ: 1  Multiples: 1
Pack Size: 1
Availability Price Quantity
0 - WHS 1


Ships to you between Thu. 16 May to Wed. 22 May

MOQ : 1
Multiples : 1

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STEVAL-ISA198V1
STMicroelectronics

1 : USD 40.5076

0 - WHS 2


Ships to you between Wed. 22 May to Fri. 24 May

MOQ : 1
Multiples : 1

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STEVAL-ISA198V1
STMicroelectronics

1 : USD 31.2627

0 - WHS 3


Ships to you between Thu. 16 May to Wed. 22 May

MOQ : 1
Multiples : 1

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STEVAL-ISA198V1
STMicroelectronics

1 : USD 50.1376
3 : USD 48.5847

     
Manufacturer
Product Category
RoHS - XON
Icon ROHS
Product
Type
Tool Is For Evaluation Of
Input Voltage
Output Voltage
Series
Output Current
Brand
Cnhts
Hts Code
Mxhts
Product Type
Subcategory
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S T E VA L - I S A 1 9 8 V 1 2 A step down DC - DC switching regulator (VIN = 4.5 V to 60 V) based on the L7987L Data brief Description The STEVAL-ISA198V1 product evaluation board is a step-down switching power supply based on the L7987L regulator in an HTSSOP16 package. The output voltage can be set starting from 0.8 V. Low drop-out operation, due to the advanced integrated switch management, can be achieved. The L7987L is a 61 V, 2 A step-down asynchronous switching regulator with embedded power MOSFET capable of delivering up to 2 A of current, depending on the application conditions. The embedded switch-over feature on the V BIAS pin and the light load management (pulse skipping) help maximize power conversion efficiency across the entire load range. The soft-start, current limit threshold and switching frequency are adjustable for application Features optimization. 4.5 V to 60 V input voltage The device includes an internal 250 kHz oscillator Step-down (buck) conversion that can be externally adjusted up to 1.5 MHz 5 V output voltage (VIN > 6 V) two L7987L regulators can be synchronized in a Up to 2 A DC output current 180 out-of-phase configuration for reduced total 500 kHz switching frequency input RMS current. 5 ms programmed soft-start Compliant with ceramic output capacitors 180 out of phase synchronization available Auto recovery overcurrent and thermal protection RoHS compliant November 2016 DocID030001 Rev 1 1/4 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagram STEVAL-ISA198V1 1 Schematic diagram Figure 1: STEVAL-ISA198V1 circuit schematic GSPG1310161600SG 2/4 DocID030001 Rev 1 IOCP = 3 A R1 NM TP1 Tss = 5.3 ms PGOOD Fsw = 500 kHz U1 TP2 R2 100k TP4 7 12 VOUT SYNCH SYNCH PGOOD TP3 J2 2 1 VIN VIN VBIAS 3 VIN 15 R4 BOOT 0 J1 VOUT = 5 V 4 C7 VCC J3 L7987L IOUT,MAX = 2 A TP5 5 13 100nF EN L1 15uH EN LX Fbw = 60 kHz 14 LX 6 Ph = 60 deg SS R5 910 C8 680pF 9 FB 10 FSW 10k R6 C9 6.8nF R7 68k 11 8 ILIM COMP EP GND C11 68pF 17 16 R8 D1 C10 R9 STPS2L60UF + 27k R10 R11 33nF 47k NM 13k signal GND TP6 TP7 power GND GND GND C1 4.7uF 100V C2 4.7uF 100V C3 1uF 100V C4 1uF 100V C5 47uF C6 N.M. C12 N.M.

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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