Zetex Semiconductors PLC ZXLD1615/1601 - Manual (Page 3)

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www.zetex.com
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.
Other SOT23-5 pin compatible parts are:
Sipex – SP6690
TI – TPS61040
The main performance attributes of the
ZXLD1615 compared with competition are
shown in the table.
The ZXLD1601H6 is one of the smallest
packages available for this function. This will
be of interest where space is a premium.
Other parts which are similar but not pin
compatible are:
Maxim – MAX1605 in SOT23-6
Micrel – MIC2141
Zetex is price competitive with respect to all
these suppliers.
Company Zetex Linear Tech Texas Inst Sipex
Part number ZXLD1615 LT1615 TPS61040 SP6690
Conversion mode PFM PFM PFM PFM
Supply input voltage (V) 2.5 to 5.5 1.2 to 15 1.8 to 6 1 to 15
Output voltage (V) 28 34 28 30
Switch current (mA) 320 typ 350 typ 400 typ 350 typ
Quiescent current (µA) 60 typ 20 typ 28 typ 20 typ
Standby current (µA) 0.1 max 1 max 1 max 1 max
Feedback ctrl voltage (V) 1.0 ±2% 1.23 ±2% 1.233 ±2% 1.22 ±4%
Efficiency at 3V (%) 80 80 80 80
Operating temperature (ºC) -40 to +85 -40 to +85 -40 to +85 -40 to +85
L1
D1
ZHCS400
C2
C1
3V nominal VOUT
EN
GN
D
FB
LX
VI
N
ZXLD1615
ON
OFF
R2
R1