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ISL91117IIA-EVZ
Description
The ISL91117 is a highly-integrated boost switching regulator
for battery powered applications. The device provides a power
supply solution for products using dual-cell or three-cell
alkaline, NiCd or NiMH, or one-cell Li-ion or Li-polymer battery
The ISL91117IIA-EVZ platforms allows quick evaluation of the
high performance features of the ISL91117 high current boost
regulator series.
Specifications
The board is designed to operate at the following operating
conditions:
• Input voltage rating from 1.8V to 4.8V
• Resistor programmable output voltage
• True disconnect input to output when disabled
• Up to 1.5A output current (PVIN = 3.3V, V
• 2.5MHz switching frequency
• Operating temperature range: -40°C to +85°C
VIN
GND
AN1918 Rev 1.00
Nov 13, 2023
Key Board Features
• Small, compact design
• Jumper selectable EN (enabled/disabled)
• Jumper selectable MODE (auto-PFM/forced-PWM)
• Connectors, test points, and jumpers for easy probing
References
ISL91117 Data Sheet,
Ordering Information
ISL91117IIA-EVZ
= 5V)
OUT
BLKG
LX
PVIN
VOUT
FB
VIN
MODE
EN
FIGURE 1. ISL91117IIA-EVZ BLOCK DIAGRAM
Evaluation Board Manual
FN8569
PART NUMBER
Evaluation Board for ISL91117IIAZ
© 2014-2023 Renesas Electronics
DESCRIPTION
VOUT
GND
Page 1 of 7
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Summary of Contents for Renesas ISL91117IIA-EVZ
- Page 1 • Jumper selectable MODE (auto-PFM/forced-PWM) alkaline, NiCd or NiMH, or one-cell Li-ion or Li-polymer battery The ISL91117IIA-EVZ platforms allows quick evaluation of the • Connectors, test points, and jumpers for easy probing high performance features of the ISL91117 high current boost References regulator series.
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Page 2: Functional Description
(k) for high current operations. The ISL91117IIA-EVZ evaluation board is shown in Figures 4 and 5. 90.9 The board’s enable function is controlled by the on-board jumper header J3. Similarly the Mode function is controlled by the on-board jumper header J4. - Page 3 ISL91117IIA-EVZ ISL91117IIA-EVZ Evaluation Board FIGURE 4. TOP VIEW FIGURE 5. BOTTOM VIEW AN1918 Rev 1.00 Page 3 of 7 Nov 13, 2023...
- Page 4 ISL91117IIA-EVZ ISL91117IIA-EVZ Evaluation Board Schematic FIGURE 6. ISL91117IIA-EVZ EVALUATION BOARD SCHEMATIC TABLE 2. ISL91117IIA-EVZ EVALUATION BOARD BILL OF MATERIALS ITEM# DESIGNATORS PART TYPE FOOTPRINT DESCRIPTION VENDORS ISL91117IIAZ W4x5.20; WLCSP ISL91117 Boost Regulator with Adjustable Renesas Output Voltage 1µH 3.2mmx2.5mm Power Inductor DFE322512C, 4.6A, 34mΩ...
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Page 5: Pcb Layout
ISL91117IIA-EVZ PCB Layout FIGURE 7. TOP LAYER FIGURE 8. INNER LAYER 1 AN1918 Rev 1.00 Page 5 of 7 Nov 13, 2023... - Page 6 ISL91117IIA-EVZ PCB Layout (Continued) FIGURE 9. INNER LAYER 2 FIGURE 10. BOTTOM LAYER AN1918 Rev 1.00 Page 6 of 7 Nov 13, 2023...
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Page 7: Revision History
ISL91117IIA-EVZ Revision History REVISION DATE DESCRIPTION 1.00 Nov 13, 2023 Added Rev history table. Removed ISL91117II7-EVZ board information from document. 0.00 Mar 4, 2014 Initial release. AN1918 Rev 1.00 Page 7 of 7 Nov 13, 2023... -
Page 8: Corporate Headquarters
Renesas' products are provided only subject to Renesas' Terms and Conditions of Sale or other applicable terms agreed to in writing. No use o any Renesas resources expands or otherwise alters any applicable warranties or warranty disclaimers for these products.
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