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ISL75052SEHEVAL1Z
High Performance 1.5A LDO Evaluation Board User Guide
The
ISL75052SEH
is a high-performance, adjustable,
low-voltage, high-current, low-dropout linear regulator
specified at 1.5A rated output current for input voltages from
4.0V to 13.2V. The LDO outputs can be adjusted from 0.6V to
12.7V by means of two preset resistors. Salient features of the
part include:
• TID, ELDRS, and SEE rated
• Very fast load transient response
• ±2.0% guaranteed V
accuracy over line, load and
OUT
temperature
• Typical dropout of 225mV at 1.5A
• EN feature
• PG feature
• OCP feature
• Short-circuit and over-temperature protection
The ISL75052SEHEVAL1Z evaluation board provides a simple
platform to evaluate performance of the ISL75052SEH. The
device output voltage is adjustable, and jumpers are provided
to easily set popular output voltages.
V
IN
AN1850 Rev.1.01
Oct 24, 2022
EN
ISL75052SEH
C
IN
OCP
GND
FIGURE 1. BLOCK DIAGRAM
USER'S MANUAL
Features
• Five preprogrammed output voltages
• Potentiometer to adjust the output voltage
• LED to monitor proper operation
• Test points to easily measure the control loop
Specifications
This board has been configured and optimized for the following
operating conditions:
• V
= 4V to 13.2V
IN
• I
= 1.5A
L
Ordering Information
PART NUMBER
ISL75052SEHEVAL1Z
ISL75052SEH evaluation board
PG
R
TOP
ADJ
C
OUT
R
BOTTOM
© 2013-2022 Renesas Electronics
AN1850
Rev.1.01
Oct 24, 2022
DESCRIPTION
V
OUT
Page 1 of 15
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Summary of Contents for Intersil ISL75052SEHEVAL1Z
- Page 1 • OCP feature Ordering Information • Short-circuit and over-temperature protection PART NUMBER DESCRIPTION The ISL75052SEHEVAL1Z evaluation board provides a simple platform to evaluate performance of the ISL75052SEH. The ISL75052SEHEVAL1Z ISL75052SEH evaluation board device output voltage is adjustable, and jumpers are provided to easily set popular output voltages.
-
Page 2: What's Inside
51°C. On the high side, an ESR of 100mΩ is found to limit keep the board capacitance of the ADJ net to GND as low as the gain margin at around 10dB. The typical GM/PM seen on the possible. ISL75052SEHEVAL1Z evaluation board for V = 3.3V, Thermal Guidelines = 1.8V, and I = 3A, with a 220µF, 10V, 25mΩ... - Page 3 ISL75052SEHEVAL1Z FIGURE 2. ISL75052SEHEVAL1Z EVALUATION BOARD AN1850 Rev.1.01 Page 3 of 15 Oct 24, 2022...
- Page 4 100000PF VOUT VOUT JP11 COMP TP13 COMP 22.1K 1000PF TP10 ENABLE VCC5 PAD METAL 100000PF TP14 VCC5 ISL75052SEHVFE VOUT TP15 2N7002-7-F TP12 PGOOD VOUTP 15.8K VADJ VOUT VOUT OPTIONS DRAWN BY: DATE: ENGINEER: DATE: TIM KLEMANN ISL75052SEHEVAL1Z SCHEMATIC FIGURE 3.
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Page 5: Bill Of Materials
ISL75052SEHEVAL1Z Bill of Materials REFERENCE DESIGNATOR DESCRIPTION MANUFACTURER PART SEE LABEL-RENAME PWB-PCB, ISL75052SEHEV1Z, ISL75052SEHEV1ZREVBPCB BOARD REVB, ROHS CAP-MILPRF-55681, SMD, CDR03BP102BKMR 1808, 0.001µF, 100V, 10%, ROHS C3, C6, C8, C9, C13 CAP-MILQUAL, SMD, 1812, CDR04BX104AKMR 0.1µF, 50V, 10%, BX, ROHS CAP, SMD, 0603, 0.1µF, 16V,... - Page 6 ISL75052SEHEVAL1Z Bill of Materials (Continued) REFERENCE DESIGNATOR DESCRIPTION MANUFACTURER PART RES, SMD, 0603, 15.8k, VENKEL CR0603-10W-1582FT PANASONIC 1/10W, 1%, TF, ROHS RES, SMD, 0603, 2.15k, YAGEO RC0603FR-072K15L VENKEL 1/10W, 1%, TF, ROHS RES, SMD, 0603, 22.1k, PANASONIC ERJ-3EKF2212V VENKEL 1/10W, 1%, TF, ROHS RES, SMD, 0603, 2.74k,...
- Page 7 ISL75052SEHEVAL1Z Layout FIGURE 4. SILK SCREEN TOP FIGURE 5. TOP LAYER COMPONENT SIDE AN1850 Rev.1.01 Page 7 of 15 Oct 24, 2022...
- Page 8 ISL75052SEHEVAL1Z Layout (Continued) FIGURE 6. LAYER 2 FIGURE 7. LAYER 3 AN1850 Rev.1.01 Page 8 of 15 Oct 24, 2022...
- Page 9 ISL75052SEHEVAL1Z Layout (Continued) FIGURE 8. BOTTOM LAYER SOLDER SIDE FIGURE 9. SILK SCREEN BOTTOM AN1850 Rev.1.01 Page 9 of 15 Oct 24, 2022...
- Page 10 ISL75052SEHEVAL1Z Layout (Continued) FIGURE 10. SILK SCREEN BOTTOM MIRROR AN1850 Rev.1.01 Page 10 of 15 Oct 24, 2022...
- Page 11 ISL75052SEHEVAL1Z Typical Performance Curves Unless otherwise specified, V IN = V OUT + 0.4V, V OUT = 2.5V, C IN = C OUT = 200µF, T J = +25°C, I LOAD = 0A. PGOOD PGOOD 1ms/DIV 1ms/DIV FIGURE 11. START-UP WAVEFORMS: V = 4.0V, V...
- Page 12 ISL75052SEHEVAL1Z Typical Performance Curves Unless otherwise specified, V IN = V OUT + 0.4V, V OUT = 2.5V, C IN = C OUT = 200µF, T J = +25°C, I LOAD = 0A. (Continued) 0.30 0.30 DROPOUT V AT +150°C DROPOUT V AT +150°C...
- Page 13 ISL75052SEHEVAL1Z Typical Performance Curves Unless otherwise specified, V IN = V OUT + 0.4V, V OUT = 2.5V, C IN = C OUT = 200µF, T J = +25°C, I LOAD = 0A. (Continued) 10.35 10.35 10.17V +1.5% 10.17V +1.5% 10.30...
- Page 14 ISL75052SEHEVAL1Z Typical Performance Curves Unless otherwise specified, V IN = V OUT + 0.4V, V OUT = 2.5V, C IN = C OUT = 200µF, T J = +25°C, I LOAD = 0A. (Continued) VOUT VOUT VBYP VBYP FIGURE 28. SOFT-START with BYP CAP = 0.2µF and FIGURE 29.
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Page 15: Revision History
ISL75052SEHEVAL1Z Revision History DATE REVISION CHANGE Oct 24, 2022 1.01 Removed Related Literature section. Added Output Voltage Soft-Start Adjustment and Output Voltage Start-Up Delay Adjustment sections. Added Figures 28 - 30. Added Revision History section. Aug 10, 2017 1.00 Applied New Header/Footer Updated Title Added Features, Specifications, Ordering Information, and Related Literature sections. -
Page 16: Corporate Headquarters
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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