Company proprietary – Sales network use only
New product information from Zetex
July 2004
ZXLD1615/1601 boost converter for
LCD-OLED bias and DC-DC supply
Features
Benefits
• Internal 30V NMOS switch
• Minimum external components
• Reduced flicker
• True analog output voltage control
• High efficiency: 80% typical
• 2.5V to 5.5V supply range
• Longer battery life
• Compatible with Li-Ion battery
• Longer battery life
• Low quiescent current
• TSOP23-5 and SC70-6 packages
• ZXLD1615 is pin compatible to LT1615
• Minimum board area
• Alternate source to LT1615
Applications
•
•
•
LCD and OLED biasing
Varactor diode biasing
DC-DC boost converter
•
•
•
Cell phones
Digital cameras
PDAs
1
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D1
ZHCS400
L1
3V nominal
VOUT
C2
R2
R1
ON
EN
ZXLD1615
FB
OFF
C1
Competition
There are several competitive solutions The ZXLD1601H6 is one of the smallest
available for LCD and OLED biasing. Zetex packages available for this function. This will
has chosen to make a SOT23-5 pin be of interest where space is a premium.
compatible version of the industry leading
Other parts which are similar but not pin
compatible are:
LT1615.
This should enable an easy
acceptance of the part and a high chance of
being considered as an alternative source.
Maxim – MAX1605 in SOT23-6
Micrel – MIC2141
Other SOT23-5 pin compatible parts are:
Sipex – SP6690
Zetex is price competitive with respect to all
these suppliers.
TI – TPS61040
The main performance attributes of the
ZXLD1615 compared with competition are
shown in the table.
Company
Zetex
ZXLD1615
PFM
Linear Tech
LT1615
PFM
Texas Inst
TPS61040
PFM
Sipex
SP6690
PFM
Part number
Conversion mode
Supply input voltage (V)
Output voltage (V)
Switch current (mA)
Quiescent current (µA)
Standby current (µA)
Feedback ctrl voltage (V)
Efficiency at 3V (%)
Operating temperature (ºC)
2.5 to 5.5
28
1.2 to 15
34
1.8 to 6
28
1 to 15
30
320 typ
60 typ
350 typ
20 typ
400 typ
28 typ
350 typ
20 typ
1 max
1.22 ±4%
80
0.1 max
1.0 ±2%
80
1 max
1 max
1.23 ±2%
80
1.233 ±2%
80
-40 to +85
-40 to +85
-40 to +85
-40 to +85
3
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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.)
Typical applications include:
LCD bias generator
OLED bias generator
• Manufacturers of handheld equipment
incorporating color LCD or OLEDs
Varactor diode bias generator
where bias is generated externally to the
display module. This typically includes
digital cameras, mobile phones, PDAs,
GPS and portable test equipment.
DC-DC boost for hand held instruments
PIN diode bias generator
• Users of LT1615 where the supply
voltage range is within 2.5 to 5.5V.
Pricing
As a guide :
As always with all new products please ask
if you have any pricing questions.
ZXLD1615ET5TA is $0.53 at 1k and $0.41
at 10k.
ZXLD1601H6TA is $0.65 at 1k and $0.50 at
10k
Ordering Information
Do you have a key customer
you’d like to send samples to?
•
•
•
•
#ZXLD1615ET5TA – samples available now
#ZXLD1601H6TA – samples available now
ZXLD1615ET5TA – production available now
ZXLD1601H6TA – production available now
Contact us at:
4
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For lead free product prefix the part number with U.
i.e. UZXLD1615ET5TA
This convention will apply until Zetex is completely lead free, at which time the U prefix will
not be required.
TA reels contain 3000 parts. Where larger reels are required the TC reel contains 10,000
parts.
Support
• Datasheets - the ZXLD1615 and ZXLD1601 datasheets are available now on the Zetex
web site:
• Application note – Several applications are described in the product datasheets. Future
application notes will be publicized as they become available
• Evaluation board for ZXLD1615 available for qualified customers.
Conclusion
As with many Zetex products, what we show on our collateral is not the limit of what we can
achieve. If you see other product opportunities, please let us know. Your local Zetex office
will be pleased to offer any technical support, pricing and sample requests.
Ref. ZXLD1615/1601KHG – July 2004
Europe
Americas
Asia Pacific
Corporate HQ
Zetex Semiconductors plc
Lansdowne Road
Chadderton
Oldham, OL9 9TY
United Kingdom
Zetex GmbH
Streitfeldstraße 19
81673 München
Germany
Zetex Inc
Zetex (Asia) Ltd
3701-04 Metroplaza Tower 1
Hing Fong Road
Kwai Fong
700 Veterans Memorial Hwy
Hauppauge
NY 11788
USA
Hong Kong
Tel: (49) 89 45 49 49 0
Fax: (49) 89 45 49 49 49
Tel: 631 360 2222
Fax: 631 360 8222
Tel: (852) 26100 611
Fax: (852) 24250 494
44 161 622 4444
44 161 622 4446
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