19-1613; Rev 0; 1/00
Low-Cost, Micropower, Low-Dropout,
High-Output-Current, SOT23 Voltage References
General Description
Features
The MAX6101–MAX6105 are low-cost, low-dropout
(LDO), micropower voltage references. These three-termi-
nal references operate with an input voltage range from
ꢀ Ultra-Small 3-Pin SOT23 Package
ꢀ Low Cost
(V
+ 200mV) to 12.6V and are available with output
OUT
ꢀ Stable with C
= 0 to 1µF
LOAD
voltage options of 1.25V, 2.5V, 3V, 4.096V, and 5V. They
feature a proprietary curvature-correction circuit and
laser-trimmed thin-film resistors that result in a low tem-
perature coefficient of 75ppm/°C (max) and an initial
accuracy of 0.4ꢀ (max). These devices are specified
over the extended temperature range (-40°C to +85°C).
ꢀ 5mA Source Current
0ꢀ.4 maꢁ ꢂnitial Accuracꢃ
ꢀ
ꢀ Low 75ppm/°C Temperature Coefficient
ꢀ 150µA maꢁ Quiescent Supplꢃ Current
ꢀ 50mV Dropout at 1mA Load Current
These series-mode voltage references draw only 90µA of
supply current and can source 5mA and sink 2mA of load
current. Unlike conventional shunt-mode (two-terminal)
references that waste supply current and require an
external resistor, these devices offer a supply current that
is virtually independent of the supply voltage (with only a
4µA/V variation with supply voltage) and do not require an
external resistor. Additionally, these internally compensat-
ed devices do not require an external compensation
capacitor and are stable with up to 1µF of load capaci-
tance. Eliminating the external compensation capacitor
saves valuable board area in space-critical applications.
Their LDO voltage and supply-independent, ultra-low
supply current make these devices ideal for battery-oper-
ated, high-performance, low-voltage systems.
Ordering Information
PIN-
TOP
MARK
PART
TEMP. RANGE
PACKAGE
MAX6101EUR-T -40°C to +85°C 3 SOT23-3
MAX6102EUR-T -40°C to +85°C 3 SOT23-3
MAX6103EUR-T -40°C to +85°C 3 SOT23-3
MAX6104EUR-T -40°C to +85°C 3 SOT23-3
MAX6105EUR-T -40°C to +85°C 3 SOT23-3
FZGT
FZGU
FZGV
FZGW
FZGX
Note: There is a minimum order increment of 2500 pieces for
SOT packages.
The MAX6101–MAX6105 are available in tiny 3-pin
SOT23 packages.
Selector Guide
OUTPUT
VOLTAGE (V)
INPUT VOLTAGE
RANGE (V)
Applications
PART
Portable Battery-Powered Systems
Notebook Computers
PDAs, GPSs, DMMs
Cellular Phones
MAX6101
MAX6102
MAX6103
MAX6104
MAX6105
1.250
2.500
3.000
4.096
5.000
2.5 to 12.6
(V
(V
(V
(V
+ 200mV) to 12.6
+ 200mV) to 12.6
+ 200mV) to 12.6
+ 200mV) to 12.6
OUT
OUT
OUT
OUT
Hard-Disk Drives
Typical Operating Circuit
Pin Configuration
+SUPPLY INPUT (SEE SELECTOR GUIDE)
TOP VIEW
IN
OUT
REFERENCE
OUT
IN
1
2
MAX6101
MAX6102
MAX6103
MAX6104
MAX6105
MAX6101
*
MAX6102
MAX6103
MAX6104
MAX6105
3
GND
OUT
1µF MAX*
GND
SOT23-3
*CAPACITORS ARE OPTIONAL.
________________________________________________________________ Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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