Renesas ISL85410EVAL1Z, User Manual
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Renesas ISL85410EVAL1Z, User Manual

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ISL85410EVAL1Z, ISL854102EVAL1Z, ISL85418EVAL1Z
Evaluation Boards User Guide
Description
The ISL85410EVAL1Z, ISL854102EVAL1Z, and
ISL85418EVAL1Z boards are intended for use for point-of-load
applications sourcing from 3V to 40V. The boards are used to
evaluate the performance of the ISL85410, ISL854102, and
ISL85418
wide V
low quiescent current high-efficiency
IN
synchronous buck regulators with 1A (ISL85410), 1.2A
(ISL854102) and 800mA (ISL85418EVAL1Z) output current.
The ISL85410, ISL854102, and ISL85418 are offered in a
4mmx3mm 12 Ld DFN package with 1mm maximum height.
The converter occupies 1.516cm
Specifications
These boards have been configured and optimized for the
following operating conditions:
• V
= 24V
IN
• V
= 3.3V
OUT
• I
= 1A (ISL85410), 1.2A (ISL854102), and 800mA
MAX
(ISL85418)
• f
= 500kHz
SW
• Peak efficiency: >84% at 50% load
• Output ripple: <3mV at 1.2A
• Dynamic response: 4.5%
(0A to 1.2A and 1.2A to 0A steps, PWM, di/dt = 1A/μs)
• Board temperature: +25°C
AN1905 Rev.4.00
Oct 18, 2016
2
area.
FIGURE 1. BLOCK DIAGRAM
USER'S MANUAL
Key Features
• Wide input voltage range 3V to 40V
• Synchronous operation for high efficiency
• No compensation required
• Integrated high-side and low-side NMOS devices
• Selectable PFM or forced PWM mode at light loads
• Internal fixed (500kHz) or adjustable switching frequency
300kHz to 2MHz
• Continuous output current up to 1A (ISL85410), 1.2A
(ISL854102), and 800mA (ISL85418)
• Internal or external soft-start
• Minimal external components required
• Power-good and enable functions available
Related Literature
• For a full list of related documents please visit our website
- ISL85410, ISL85418, ISL854102, product pages
Ordering Information
PART NUMBER
ISL85410EVAL1Z
Evaluation board (1A output current)
ISL85418EVAL1Z
Evaluation board (800mA output current)
ISL854102EVAL1Z
Evaluation board (1.2A output current)
AN1905
Rev.4.00
Oct 18, 2016
DESCRIPTION
Page 1 of 11

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Summary of Contents for Renesas ISL85410EVAL1Z,

  • Page 1 USER’S MANUAL ISL85410EVAL1Z, ISL854102EVAL1Z, ISL85418EVAL1Z AN1905 Rev.4.00 Evaluation Boards User Guide Oct 18, 2016 Description Key Features The ISL85410EVAL1Z, ISL854102EVAL1Z, and • Wide input voltage range 3V to 40V ISL85418EVAL1Z boards are intended for use for point-of-load • Synchronous operation for high efficiency applications sourcing from 3V to 40V.

  • Page 2: Recommended Equipment

    Evaluation Boards User Guide ISL85410EVAL1Z, ISL854102EVAL1Z, ISL85418EVAL1Z Recommended Equipment Frequency Control The ISL85410, ISL854102, and ISL85418 have an FS pin that The following materials are recommended to perform testing: controls the frequency of operation. Programmable frequency • 0V to 50V power supply with at least 2A source current allows for optimization between efficiency and external capability component size.

  • Page 3: Pictures Of Boards

    Evaluation Boards User Guide ISL85410EVAL1Z, ISL854102EVAL1Z, ISL85418EVAL1Z Pictures of Boards FIGURE 2. FRONT OF EVALUATION BOARD ISL85410EVAL1Z FIGURE 3. BACK OF EVALUATION BOARD ISL85410EVAL1Z FIGURE 4. FRONT OF EVALUATION BOARD ISL854102EVAL1Z FIGURE 5. BACK OF EVALUATION BOARD ISL854102EVAL1Z FIGURE 6. FRONT OF EVALUATION BOARD ISL85418EVAL1Z FIGURE 7.
  • Page 4 Evaluation Boards User Guide ISL85410EVAL1Z, ISL854102EVAL1Z, ISL85418EVAL1Z Schematics SYNC PGND Fsw=500kHz ISL85410FRZ 200k OPEN TKSS CSS 33nF OPEN SYNC SYNC COMP 100k 470pF GT11MSCBE +0.600V BOOT +/-6mV 0.1uF +/-0.5V +3 ... +40V C9 1uF 200k PGND Open Drain, add PULLUP. PHASE PGND 150uF...

  • Page 5: Bill Of Materials

    Evaluation Boards User Guide ISL85410EVAL1Z, ISL854102EVAL1Z, ISL85418EVAL1Z Schematics (Continued) SYNC PGND Fsw=500kHz ISL85418FRZ 200k OPEN TKSS CSS 33nF OPEN SYNC SYNC COMP 100k 470pF GT11MSCBE +0.600V BOOT +/-6mV 0.1uF +/-0.5V +3 ... +40V C9 1uF 200k PGND Open Drain, add PULLUP. PHASE PGND 150uF...
  • Page 6 Evaluation Boards User Guide ISL85410EVAL1Z, ISL854102EVAL1Z, ISL85418EVAL1Z Bill of Materials (Continued) REFERENCE MANUFACTURER PART UNITS DESIGNATOR DESCRIPTION MANUFACTURER DR73-220-R COIL-PWR INDUCTOR, SMD, 7.6mm, COOPER/COILTRONICS 22µH, 20%, 1.62A, ROHS 131-4353-00 J1, J2 CONN-SCOPE PROBE TEST PT, TEKTRONIX COMPACT, PCB MNT, ROHS 1514-2 P4, P5, P7, P9 CONN-TURRET, TERMINAL POST, TH,...

  • Page 7: Board Layout

    Evaluation Boards User Guide ISL85410EVAL1Z, ISL854102EVAL1Z, ISL85418EVAL1Z Board Layout FIGURE 11. SILK SCREEN TOP FIGURE 12. LAYER 1 AN1905 Rev.4.00 Page 7 of 11 Oct 18, 2016...
  • Page 8 Evaluation Boards User Guide ISL85410EVAL1Z, ISL854102EVAL1Z, ISL85418EVAL1Z Board Layout (Continued) FIGURE 13. LAYER 2 FIGURE 14. LAYER 3 AN1905 Rev.4.00 Page 8 of 11 Oct 18, 2016...
  • Page 9 Evaluation Boards User Guide ISL85410EVAL1Z, ISL854102EVAL1Z, ISL85418EVAL1Z Board Layout (Continued) FIGURE 15. LAYER 4 FIGURE 16. SILK SCREEN BOTTOM AN1905 Rev.4.00 Page 9 of 11 Oct 18, 2016...

  • Page 10: Typical Performance Curves

    Evaluation Boards User Guide ISL85410EVAL1Z, ISL854102EVAL1Z, ISL85418EVAL1Z Typical Performance Curves VIN = 5V VIN = 12V VIN = 5V VIN = 24V VIN = 12V VIN = 36V VIN = 24V VIN = 36V 0.01 OUTPUT CURRENT (A) OUTPUT CURRENT (A) FIGURE 17.
  • Page 11 10. It is the responsibility of the buyer or distributor of Renesas Electronics products, or any other party who distributes, disposes of, or otherwise sells or transfers the product to a third party, to notify such third party in advance of the contents and conditions set forth in this document.

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