Intersil ISL75051ASEHEV1Z Manual
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Intersil ISL75051ASEHEV1Z Manual

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ISL75051ASEHEV1Z
ISL75051ASEH
is a high-performance, adjustable,
low-voltage, high-current, low-dropout linear regulator
specified at 3A rated output current for input voltages
from 2.2V to 6V. The LDO outputs can be adjusted
from 0.8V to 5V using two preset resistors.
The ISL75051ASEHEV1Z evaluation board provides
a simple platform to evaluate the performance of the
ISL75051ASEH. The same board can be used to
evaluate the
ISL73051ASEH
offered with different radiation assurance screening.
The device output voltage is adjustable, and jumpers
are provided to easily set popular output voltages.The
device output voltage is adjustable, and jumpers are
provided to easily set popular output voltages.
What's Inside
The evaluation kit contains the following:
▪ ISL75051ASEHEV1Z evaluation board
▪ ISL75051ASEH datasheet
▪ This user manual
UG148 Rev.1.00
Jan 23, 2023
which is the same die
EN
EN
ROCP
OCP
VIN
ISL75051ASEH
VIN
PG
220µF
0.1µF
VIN
Figure 1. ISL75051ASEHEV1Z Simplified Schematic
Key Features
▪ TID, ELDRS, and SEE Rated
▪ Very fast load transient response
▪ ±2.0% guaranteed V
and temperature
▪ Typical dropout of 287mV at 3A
▪ EN, PG, and OCP features
▪ Short-circuit and over-temperature protection
Specifications
▪ V
= 2.2V to 6.0V
IN
▪ Temperature range: -55°C to 125°C
Related Literature
For a full list of related documents, visit our website
▪
ISL75051ASEH
pages
BYP
ADJ
VOUT
R
1
GND
R
PG
2
Evaluation Board Manual
accuracy over line, load,
OUT
and
ISL73051ASEH
0.1µF
VOUT
0.1µF 220µF
2.67k
4.7nF
100pF
© 2017-2023 Renesas Electronics
product
Page 1

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Summary of Contents for Intersil ISL75051ASEHEV1Z

  • Page 1 0.8V to 5V using two preset resistors. and temperature The ISL75051ASEHEV1Z evaluation board provides ▪ Typical dropout of 287mV at 3A a simple platform to evaluate the performance of the ▪ EN, PG, and OCP features ISL75051ASEH.

  • Page 2: Table Of Contents

    ISL75051ASEHEV1Z Schematic ........

  • Page 3: Functional Description

    ISL75051ASEHEV1Z Evaluation Board Manual Functional Description Use the following information to optimize the performance of the ISL75051ASEH. Operating Range ▪ V = 2.2V to 6.0V Quick Start Guide 1. Configure the EN pin. Shorting JP11 disables the part, while leaving it open enables the LDO.

  • Page 4: Input And Output Capacitor Selection

    6mΩ to 100mΩ. At the lower limit of ESR = 6mΩ, the phase margin is about 51°C. On the high side, an ESR of 100mΩ is found to limit the gain margin at around 10dB. The typical GM/PM seen on the ISL75051ASEHEV1Z evaluation board for V = 3.3V, V...

  • Page 5: Board Design

    ISL75051ASEHEV1Z Evaluation Board Manual Board Design Figure 3. ISL75051ASEHEV1Z Evaluation Board, Top Figure 4. ISL75051ASEHEV1Z Evaluation Board, Bottom UG148 Rev.1.00 Page 5 Jan 23, 2023...

  • Page 6: Pcb Layout Guidelines

    ISL75051ASEHEV1Z Evaluation Board Manual PCB Layout Guidelines Good PCB layout is important for achieving expected performance. When placing components and routing traces, minimize ground impedance and keep parasitic inductance low. Give the input and output capacitors a good ground connection, and place them as close to the IC as possible. Route the traces connecting the ADJ pin away from noisy planes and traces, and keep the board capacitance of the ADJ net to GND as low as possible.

  • Page 7: Isl75051Asehev1Z Schematic

    ISL75051ASEHEV1Z Evaluation Board Manual ISL75051ASEHEV1Z Schematic OPEN 0.1UF 5.49K 0.1UF 220UF 220UF OPEN 0.1UF 0.8V 7.87K VOUT VOUT 1.5V 2.26K VOUT VOUT 1.8V 1.74K VOUT VOUT 2.5V 1.13K 4.0V METAL PAD ISL75051ASEHVFE ADJ. JP11 100PF ENABLE OCP_MAX OPEN OCP_MIN 4.99K OPEN 0.1UF...

  • Page 8: Bill Of Materials

    ISL75051ASEHEV1Z Evaluation Board Manual Bill of Materials Reference Manufacturer Description Manufacturer Designator Part PWB-PCB, ISL75051ASEHEV1Z, ISL75051ASEHEV1ZREVAPC IMAGINEERING INC REVA, ROHS CAP-MILQUAL, SMD, 0805, 4700pF, VISHAY/VITRAMON CDR01BX472AKMR 50V, 10%, BX, ROHS C1B, C5B, C6B, CAP-MILQUAL, SMD, 1812, 0.1µF, 50V, CDR04BX104AKMR 10%, BX, ROHS...
  • Page 9 ISL75051ASEHEV1Z Evaluation Board Manual Reference Manufacturer Description Manufacturer Designator Part RESISTOR, SMD, 0805, DNP, DNP, DNP, TF RES, SMD, 0603, 0Ω, 1/10W, TF, ROHS VENKEL CR0603-10W-000T RES, SMD, 0603, 100Ω, 1/10W, 1%, TF, VENKEL CR0603-10W-1000FT ROHS RES, SMD, 0603, 10k, 1/10W, 1%, TF,...

  • Page 10: Board Layout

    ISL75051ASEHEV1Z Evaluation Board Manual Board Layout Figure 6. Silk Screen Top Figure 7. Top Layer Component Side UG148 Rev.1.00 Page 10 Jan 23, 2023...
  • Page 11 ISL75051ASEHEV1Z Evaluation Board Manual Figure 8. Layer 2 Figure 9. Layer 3 UG148 Rev.1.00 Page 11 Jan 23, 2023...
  • Page 12 ISL75051ASEHEV1Z Evaluation Board Manual Figure 10. Bottom Layer Solder Side Figure 11. Silk Screen Bottom UG148 Rev.1.00 Page 12 Jan 23, 2023...
  • Page 13 ISL75051ASEHEV1Z Evaluation Board Manual Figure 12. Silk Screen Bottom Mirror UG148 Rev.1.00 Page 13 Jan 23, 2023...

  • Page 14: Typical Performance Curves

    ISL75051ASEHEV1Z Evaluation Board Manual Typical Performance Curves , 1V/Div 500mV/Div 500mV/Div , 2V/Div 1V/Div EN, 1V/Div PGOOD, 1V/Div PGOOD, 2V/Div 2ms/Div 2ms/Div Figure 13. Start-Up Waveforms: V = 6.0V, V = 0.8V, Figure 14. Start-Up Waveforms: V = 2.2V, V = 0.8V,...
  • Page 15 ISL75051ASEHEV1Z Evaluation Board Manual 0.30 0.25 0.20 +125°C IOCP A = +128°C +150°C 0.15 +25°C 0.10 IOCP A = +25°C IOCP A = -58°C 0.05 0.00 ROCP (kΩ) Figure 19. ROCP (kΩ) vs OCP A Over Temperature Figure 20. Dropout vs I 0.5215...

  • Page 16: Ordering Information

    ISL75051ASEHEV1Z Evaluation Board Manual 2.525 0.5215 +25°C, V (mV) -58°C, V (mV) 0.5210 2.520 0.5205 -58°C, V (mV) 2.515 0.5200 0.5195 2.510 +25°C, V (mV) 0.5190 2.505 +128°C, V (mV) 0.5185 +128°C, V (mV) 2.500 0.5180 0.5175 2.495 0.5170 2.490 = 3.3V...
  • Page 17 IMPORTANT NOTICE AND DISCLAIMER RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (“RENESAS”) PROVIDES TECHNICAL SPECIFICATIONS AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS.

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