MAX6006 Maxim Integrated Products, MAX6006 Datasheet - Page 6

• Manufacturer Part Number: MAX6006
• Description: 1 a SOT23 Precision Shunt Voltage Reference
• Manufacturer: Maxim Integrated Products

1µA SOT23 Precision Shunt
Voltage Reference
The MAX6006–MAX6009 are precision, two-terminal,
series bandgap voltage references. On-chip thin-film
resistors are laser trimmed to provide 0.2% output volt-
age accuracies. Voltages of +1.25V, +2.048V,+2.5V,
and +3.0V are available in the space-saving SOT23
package (2.1mm
For devices in this family, OUT needs to be bypassed
to GND with a 0.01µF or larger capacitor. In applica-
tions where the load or the supply can experience step
changes, additional capacitance will reduce the
amount of overshoot (or undershoot) and assist the cir-
cuit’s transient response.
Output voltage hysteresis is the change in the output
voltage at T
cycled over its entire operating temperature range.
Hysteresis is caused by differential package stress
appearing across the bandgap core transistors. The
temperature hysteresis value is typically less than
200ppm.
The output capacitance and bias current of the
MAX6006–MAX6009 greatly affects turn-on settling
time. In the Typical Operating Characteristics, turn-on
time is shown with a 10nF output capacitor and a 1.2µA
bias current. Under these conditions, the MAX6006–
MAX6009 settle in 40ms. Settling time will linearly
decrease in proportion to the circuit’s bias current.
6
SOT23
_______________________________________________________________________________________
—
1
2
3
PIN
1, 2, 3, 5,
A
6, 8
SO
= +25°C before and after the device is
—
4
7
Applications Information
✕
2.7mm).
Output Voltage Hysteresis
Output/Load Capacitance
Detailed Description
NAME
OUT
GND
N.C.
IC
Output Voltage. Bias OUT with a pullup resistor to a potential greater than OUT. Bypass OUT
to GND with a 0.01µF or larger capacitor.
Ground
Internally connected test point. Leave this pin unconnected, or connect to GND.
No connection. Not internally connected.
Turn-On Time
Figure 1. Typical Application Circuit
In the typical shunt regulator application shown in
Figure 1, R
load (I
(I
needs to be sized for:
1) R
2) R
RMIN
voltage) is at its minimum and I
I
current of the shunt regulator.
maximum and I
RMIN
BIAS
BIAS
). There are two worst-case situations that R
L
) and the current through the shunt regulator
FUNCTION
must be small enough that when V
is equal to at least the minimum operating
must be large enough that when V
BIAS
MAX6006
MAX6007
MAX6008
MAX6009
R
BIAS
is used to set the current through the
=
I
L
L
I
V
RMIN
S
+ I
is at its minimum, I
- V
RMIN
+ I
R
Typical Applications
L
V
R
V
S
R
Pin Description
BIAS
I
RMIN
I
L
L
is at its maximum,
RMIN
V
OUT
is <2mA.
S
S
(supply
is at its
BIAS