LT1790ACS6-3.3#TRMPBF Linear Technology, LT1790ACS6-3.3#TRMPBF Datasheet - Page 11

• Manufacturer Part Number: LT1790ACS6-3.3#TRMPBF
• Description: IC REF LDO 3.3V MICROPWR SOT23-6
• Manufacturer: Linear Technology

Specifications of LT1790ACS6-3.3#TRMPBF

• Reference Type: Series
• Voltage - Output: 3.3V
• Tolerance: ±0.05%
• Temperature Coefficient: 10ppm/°C
• Voltage - Input: 3.8 ~ 18 V
• Number Of Channels: 1
• Current - Quiescent: 60µA
• Current - Output: 5mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Cathode: -
• Other names: LT1790ACS6-3.3#PBF; LT1790ACS6-3.3#PBF

ELECTRICAL CHARACTERISTICS
Note 8: Peak-to-peak noise is measured with a single pole highpass fi lter
at 0.1Hz and a 2-pole lowpass fi lter at 10Hz. The unit is enclosed in a still
air environment to eliminate thermocouple effects on the leads. The test
time is 10 seconds. Integrated RMS noise is measured from 10Hz to 1kHz
with the HP3561A analyzer.
Note 9: Long-term drift typically has a logarithmic characteristic and
therefore changes after 1000 hours tend to be smaller than before that
time. Long-term drift is affected by differential stress between the IC and
the board material created during board assembly. See the Applications
Information section.
1.25V TYPICAL PERFORMANCE CHARACTERISTICS
Each of the voltage options have similar performance curves. For the 3V, 3.3V and the 4.096V options,
the curves can be estimated based on the 2.5V and 5V curves.
1.250
–1000
–1200
–1400
–1600
–1800
–2000
1.253
1.252
1.251
1.248
1.247
1.249
–200
–400
–600
–800
0
–50
0.1
Output Voltage Temperature Drift
Load Regulation (Sourcing)
FOUR TYPICAL PARTS
–30
–10
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
10
T
A
= 125°C
30
T
1
A
T
= 25°C
A
50
= –55°C
70
17091.25 G01
17901.25 G04
90
110
10
2000
1800
1600
1400
1200
1000
800
600
400
200
0.1
10
1
0
0.1
0
Minimum Input-Output Voltage
Differential (Sourcing)
Load Regulation (Sinking)
T
A
= 125°C
0.5
INPUT-OUTPUT VOLTAGE (V)
OUTPUT CURRENT (mA)
1
T
T
A
A
= –55°C
= 125°C
Note 10: Hysteresis in the output voltage is created by package stress that
differs depending on whether the IC was previously at a higher or lower
temperature. Output voltage is always measured at 25°C, but the IC is
cycled to 85°C or –40°C before a successive measurements. Hysteresis
is roughly proportional to the square of the temperature change.
Hysteresis is not a problem for operational temperature excursions where
the instrument might be stored at high or low temperature. See the
Applications Information section.
1
T
T
A
A
1.5
= –55°C
= 25°C
T
A
2
= 25°C
17901.25 G02
17901.25 G05
2.5
10
100
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
90
80
70
60
50
40
30
20
10
0
0
–50
0
Minimum Input-Output Voltage
Differential (Sinking)
Supply Current vs Input Voltage
–30
T
–10
A
= –55°C
5
INPUT VOLTAGE (V)
TEMPERATURE (°C)
10
30
100μA
10
1mA
T
50
A
LT1790
= 125°C
T
70
A
= 25°C
15
5mA
90 110
11
17901.25 G06
17091.25 G03
1790fb
130
20