
M
Low-Cost, Low-Power, Low-Dropout,
S OT 23-3 Voltage Referenc es
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11
Chip Information
TRANSISTOR COUNT: 70
T urn-On T ime
These devices typically turn on and settle to within
0.1% of their final value in 30μs to 220μs depending on
the device. The turn-on time can increase up to 1.5ms
with the device operating at the minimum dropout volt-
age and the maximum load.
Positive and Negative
Low-Power V oltage Referenc e
Figure 1 shows a typical method for developing a bipo-
lar reference. The circuit uses a MAX681 voltage dou-
bler/inverter charge-pump converter to power an
ICL7652, thus creating a positive as well as a negative
reference voltage.