LT6660HCDC-10 LINER [Linear Technology], LT6660HCDC-10 Datasheet

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LT6660HCDC-10

Manufacturer Part Number
LT6660HCDC-10
Description
Manufacturer
LINER [Linear Technology]
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
LT6660HCDC-10
Manufacturer:
LT
Quantity:
10 000
APPLICATIO S
FEATURES
TYPICAL APPLICATIO
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
Handheld Instruments
Precision Regulators
A/D and D/A Converters
Power Supplies
Hard Disk Drives
Sensor Modules
V
OUT
+ 0.9V ≤ V
IN
≤ 20V
U
Basic Connection
C1
0.1µF
IN
U
LT6660
GND
OUT
6660 TA01
V
OUT
Precision Series References
DESCRIPTIO
The LT
that combine high accuracy and low drift with low power
dissipation and extremely small package size. These se-
ries 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 regula-
tion 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 oper-
ate. Additionally, the LT6660 does not require an output
compensation capacitor. This feature is important in
applications where PC board space is a premium, fast set-
tling is demanded, or total capacitance must be kept to a
minimum, as in intrinsic safety applications. Reverse-bat-
tery protection keeps these references from conducting
reverse current.
All other trademarks are the property of their respective owners.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
®
6660 is a family of micropower series references
32
28
24
20
16
12
8
4
0
LT6660H V
–0.09
in 2mm × 2mm DFN
–0.05
U
Tiny Micropower
OUT
CHANGE IN V
–0.01
Shift Due to IR Reflow
0.01
OUT
(%)
0.05
6660 TA01b
0.09
LT6660
6660fa
1

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LT6660HCDC-10 Summary of contents

Page 1

FEATURES 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, ...

Page 2

... Storage Temperature Range (Note 3) ..... –65°C to 150°C Lead Temperature (Soldering, 10 sec) .................. 300° ORDER PART NUMBER LT6660HCDC-2.5 LT6660JCDC-2.5 LT6660KCDC-2.5 LT6660HCDC-3 LT6660JCDC-3 LT6660KCDC-3 LT6660HCDC-3.3 LT6660JCDC-3.3 LT6660KCDC-3.3 LT6660HCDC-5 LT6660JCDC-5 LT6660KCDC-5 LT6660HCDC-10 LT6660JCDC-10 LT6660KCDC-10 ACCURACY (%) COEFFICIENT (ppm/°C) 0.2 0.4 0.5 0.2 0.4 0.5 0.2 0.4 0.5 DFN PART MARKING* LBXN ...

Page 3

... LT6660-2.5 LT6660-3 LT6660-3.3 LT6660-5 LT6660-10 LT6660 TEMPERATURE PART ORDER NUMBER 20 LT6660HCDC-5 20 LT6660JCDC-5 50 LT6660KCDC-5 20 LT6660HCDC-10 20 LT6660JCDC-10 50 LT6660KCDC-10 MIN TYP MAX –0.2 0.2 –0.4 0.4 –0.5 0 ● ● ...

Page 4

LT6660 ELECTRICAL CHARACTERISTICS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LT6660 ...

Page 5

TYPICAL PERFOR A CE CHARACTERISTICS W U options of the LT6660. Curves from the LT6660-2.5 and the LT6660-10 represent the extremes of the voltage options. Characteristic curves for other output voltages fall between these curves, and can be estimated based ...

Page 6

LT6660 TYPICAL PERFOR A CE CHARACTERISTICS W U options of the LT6660. Curves from the LT6660-2.5 and the LT6660-10 represent the extremes of the voltage options. Characteristic curves for other output voltages fall between these curves, and can be estimated ...

Page 7

TYPICAL PERFOR A CE CHARACTERISTICS W U options of the LT6660. Curves from the LT6660-2.5 and the LT6660-10 represent the extremes of the voltage options. Characteristic curves for other output voltages fall between these curves, and can be estimated based ...

Page 8

LT6660 APPLICATIO S I FOR ATIO U U Longer Battery Life Series references have a large advantage over older shunt style references. Shunt references require a resistor from the power supply to operate. This resistor must be chosen to supply ...

Page 9

APPLICATIO S I FOR ATIO U U Table 1 gives the maximum output capacitance for vari- ous load currents and output voltages to avoid instability. Load capacitors with low ESR (effective series resistance) cause more ringing than capacitors with higher ...

Page 10

... LT6660HC is used as a reference instead of a regulator capable of 8 bits of absolute accuracy over temperature without a system calibration. Table 2. Worst-Case Output Accuracy over Temperature I OUT 0µA 100µA 10mA 20mA LT6660HCDC LT6660JCDC LT6660KCDC 0.340% 0.540% 0.380% 0.580% 0.640% 0.840% 0.540% ...

Page 11

PACKAGE DESCRIPTIO 1.00 ±0.05 1.30 ±0.05 (2 SIDES) 2.00 ±0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS PIN 1 BAR TOP MARK (SEE NOTE 6) 0.200 REF Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, ...

Page 12

LT6660 TYPICAL APPLICATIO U * SELECT R1 TO DELIVER 80% OF TYPICAL LOAD CURRENT. LT6660 WILL THEN SOURCE AS NECESSARY TO MAINTAIN PROPER OUTPUT. DO NOT REMOVE LOAD AS OUTPUT WILL BE DRIVEN UNREGULATED HIGH. LINE REGULATION IS DEGRADED IN ...

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