MAX6018 Maxim Integrated Products, MAX6018 Datasheet - Page 8
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MAX6018
Manufacturer Part Number
MAX6018
Description
Precision, Micropower, 1.8V Supply, Low-Dropout, SOT23 Voltage Reference
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6018.pdf
(9 pages)
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1mA/div
Precision, Micropower, 1.8V Supply,
Low-Dropout, SOT23 Voltage Reference
The MAX6018 is a precision, low-voltage, low-dropout,
micropower, bandgap voltage reference in a SOT23
package. This three-terminal reference operates with
an input voltage from (V
available with output voltage options of 1.2V, 1.6V,
1.8V, and 2.048V. These devices can source up to 1mA
with <200mV of dropout voltage, making them attrac-
tive for use in low-voltage applications.
These devices require a minimum of 100pF load to
maintain output stability.
They remain stable for capacitive loads as high as 1µF.
In applications where the load or the supply can experi-
ence step changes, a larger output capacitor reduces
the amount of overshoot (or undershoot) and assists
the circuit’s transient response. Otherwise, applications
may not need more than 100pF.
The 5µA maximum supply current varies only 0.1µA/V
with the supply voltage.
When the supply voltage is below the minimum-speci-
fied input voltage (as during turn-on), the devices can
draw up to 20µA beyond the nominal supply current.
The input voltage source must be capable of providing
this current to ensure reliable turn-on.
8
(T
1V/div
V
A
I
OUT
OUT
= +25°C, unless otherwise noted.)
_______________________________________________________________________________________
LOAD-TRANSIENT RESPONSE
MAX6018_21
Applications Information
100µs/div
Detailed Description
Output/Load Capacitance
OUT
C
OUT
= 150pF
MAX6018 toc19
+ 200mV) to 5.5V, and is
-1mA
+1mA
Supply Current
200mV/div
50mV/div
Typical Operating Characteristics (continued)
V
OUT
V
IN
LINE-TRANSIENT RESPONSE
MAX6018_12
100µs/div
These devices typically turn on and settle to within
0.1% of their final value in 200µs. The turn-on time can
increase up to 1ms with the device operating at the
minimum dropout voltage and the maximum load.
TRANSISTOR COUNT: 87
PROCESS: BiCMOS
PIN
1
2
3
C
OUT
MAX6018 toc20
NAME
= 550pF
GND
OUT
IN
Supply Voltage Input. Bypass with a 0.1µF
capacitor to ground.
Reference Voltage Output. Bypass with at
least 100pF to ground. (See Output/Load
Capacitance section).
Ground
200mV/div
50mV/div
V
OUT
V
IN
Chip Information
LINE-TRANSIENT RESPONSE
Pin Description
FUNCTION
MAX6018_21
100µs/div
Turn-On Time
C
OUT
= 550pF
MAX6018 toc21