LT6660
Tiny Micropower
Precision Series References
in 2mm × 2mm DFN
DESCRIPTIO
FEATURES
■
■
■
■
■
■
■
■
■
U
■
No Output Capacitor Required
Low Drift: 20ppm/°C Max
High Accuracy: 0.2% Max
Low Supply Current
20mA Output Current Guaranteed
Reverse-Battery Protection
Low IR Reflow Induced Stress: 0.02% Typ
Voltage Options: 2.5V, 3V, 3.3V, 5V and 10V
Space-Saving Alternative to the LT1460
3-Lead 2mm × 2mm × 0.75mm DFN Package
The LT®6660 is a family of micropower series references
that combine high accuracy and low drift with low power
dissipation and extremely small package size. These series references use curvature compensation to obtain
low temperature coefficient, and laser trimmed precision
thin-film resistors to achieve high output accuracy. The
LT6660 will supply up to 20mA with excellent line regulation characteristics, making it ideal for precision regulator
applications.
The LT6660 family of series references provide supply
current and power dissipation advantages over shunt
references that must idle the entire load current to operate. Additionally, the LT6660 does not require an output
compensation capacitor. This feature is important in
applications where PC board space is a premium, fast settling is demanded, or total capacitance must be kept to a
minimum, as in intrinsic safety applications. Reverse-battery protection keeps these references from conducting
reverse current.
APPLICATIO S
U
■
■
■
■
■
■
Handheld Instruments
Precision Regulators
A/D and D/A Converters
Power Supplies
Hard Disk Drives
Sensor Modules
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATIO
U
LT6660H VOUT Shift Due to IR Reflow
32
28
Basic Connection
LT6660
VOUT + 0.9V ≤ VIN ≤ 20V
IN
C1
0.1µF
OUT
VOUT
GND
6660 TA01
DISTRIBUTION (%)
24
20
16
12
8
4
0
–0.09
–0.05 –0.01 0.01
0.05
CHANGE IN VOUT (%)
0.09
6660 TA01b
6660fa
1
