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| 3V nominal | L1 |
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| |
| VIN | LX |
| ON | ZXLD1615 |
OFF | EN | |
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| |
| C1 | GND |
D1
ZHCS400 VOUT
R2
FB | C2 |
R1
Competition
There are several competitive solutions available for LCD and OLED biasing. Zetex has chosen to make a
Other
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
Zetex is price competitive with respect to all these suppliers.
Company |
| Zetex |
| Linear Tech | Texas Inst | Sipex |
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| TPS61040 |
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Part number |
| ZXLD1615 |
| LT1615 | SP6690 | |
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Conversion mode |
| PFM |
| PFM | PFM | PFM |
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Supply input voltage (V) |
| 2.5 to 5.5 |
| 1.2 to 15 | 1.8 to 6 | 1 to 15 |
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Output voltage (V) |
| 28 |
| 34 | 28 | 30 |
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Switch current (mA) |
| 320 typ |
| 350 typ | 400 typ | 350 typ |
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Quiescent current (µA) |
| 60 typ |
| 20 typ | 28 typ | 20 typ |
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Standby current (µA) |
| 0.1 max |
| 1 max | 1 max | 1 max |
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Feedback ctrl voltage (V) |
| 1.0 ±2% |
| 1.23 ±2% | 1.233 ±2% | 1.22 ±4% |
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Efficiency at 3V (%) |
| 80 |
| 80 | 80 | 80 |
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Operating temperature (ºC) |
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