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Company proprietary – Sales network use only
Know–how
ZXLD1615/1601 boost converter for
LCD-OLED bias and DC-DC supply
Features
• Internal 30V NMOS switch
• True analog output voltage control
• High efficiency: 80% typical
• 2.5V to 5.5V supply range
• Low quiescent current
• TSOP23-5 and SC70-6 packages
• ZXLD1615 is pin compatible to LT1615
Applications
•
LCD and OLED biasing
•
Varactor diode biasing
•
DC-DC boost converter
New product information from Zetex
Benefits
• Minimum external components
• Reduced flicker
• Longer battery life
• Compatible with Li-Ion battery
• Longer battery life
• Minimum board area
• Alternate source to LT1615
•
Cell phones
•
Digital cameras
•
PDAs
www.zetex.com
July 2004
1
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Summary of Contents for Zetex ZXLD1615/1601
- Page 1 Company proprietary – Sales network use only Know–how ZXLD1615/1601 boost converter for LCD-OLED bias and DC-DC supply Features • Internal 30V NMOS switch • True analog output voltage control • High efficiency: 80% typical • 2.5V to 5.5V supply range •...
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Page 2: Functional Description
Functional Description The ZXLD1615 and ZXLD1601 are PFM inductive DC-DC boost converters. They are particularly suited to provide bias voltages for LCD and OLED displays. Up to 28V can be generated from an input voltage between 2.5 and 5.5V. The switch is integrated on chip together with the peak current sense resistor. - Page 3 3V nom inal Competition There are several competitive solutions available for LCD and OLED biasing. Zetex has chosen to make a SOT23-5 pin compatible version of the industry leading LT1615. This should enable an easy acceptance of the part and a high chance of being considered as an alternative source.
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Page 4: Ordering Information
Potential customers to look for • LCD or OLED module manufacturers where a complete display system is provided to end users. (This is also an opportunity for the ZXLD1937 when backlighting is included in the module.) • Manufacturers of handheld equipment incorporating color LCD or OLEDs where bias is generated externally to the display module. - Page 5 Tel: (852) 26100 611 Fax: 631 360 8222 Fax: (852) 24250 494 usa.sales@zetex.com asia.sales@zetex.com www.zetex.com Ref. ZXLD1615/1601KHG – July 2004 Corporate HQ Zetex Semiconductors plc Lansdowne Road Chadderton Oldham, OL9 9TY United Kingdom 44 161 622 4444 44 161 622 4446 hq@zetex.com...