LTC1706-61 Просмотр технического описания (PDF) - Linear Technology
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LTC1706-61 Datasheet PDF : 8 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LTC1706-61
IVID-PULLUP vs Temperature
140
VCC = 5V
120 VID4 = 0V
VID0 = VID1 = VID2 = VID3 = OPEN
100
80
60
40
20
–50
0
50
TEMPERATURE (°C)
100
1706-61 G01
VID
VID Sense Accuracy
0.35
0.25
0.15
0.05
–0.05
VCC = 5.5V
VCC = 2.7V
–0.15
–0.25
–0.35
0.775
0.975 1.175 1.375
SENSE VOLTAGE (V)
1.575
1706-61 G04
Supply Current vs Temperature
2.0
ALL VID INPUTS OPEN
1.5
1.0
VCC = 5V
0.5
VCC = 3.3V VCC = 2.7V
0
–50
0
50
TEMPERATURE (°C)
VID Sense Accuracy vs
Temperature
0.35
VCC = 5.5V
0.25
100
1706-61 G02
0.15
0.05
–0.05
–0.15
VSENSE = 1.15V
VSENSE = 0.8V
VSENSE = 1.55V
–0.25
–0.35
–60 –40 –20 0 20 40 60 80 100
TEMPERATURE (°C)
1706-61 G05
Supply Current vs Supply Voltage
1.0
ALL VID INPUTS OPEN
TA = 25°C
0.5
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
SUPPLY VOLTAGE (V)
1706-61 G03
RFB1 vs Temperature
10.10
10.05
10.00
9.95
9.90
–50
0
50
TEMPERATURE (°C)
100
1706-61 G06
PIN FUNCTIONS
VID0 (Pin 1): LSB Programming Input. Low = GND,
High = VCC or Float. Grounding VID0 adds 25mV
to the output sense voltage.
VID1 (Pin 2): 4th MSB Programming Input. Low = GND,
High = VCC or Float. Grounding VID1 adds 50mV
to the output sense voltage.
VID2 (Pin 3): 3rd MSB Programming Input. Low = GND,
High = VCC or Float. Grounding VID2 adds 100mV
to the output sense voltage.
VID3 (Pin 4): 2nd MSB Programming Input. Low = GND,
High = VCC or Float. Grounding VID3 adds 200mV
to the output sense voltage.
VCC (Pin 5): Power Supply Voltage. Range from 2.7V to
5.5V.
SENSE (Pin 6): Regulator Output Voltage. Connect
directly to regulator output sense node.
VID4 (Pin 7): MSB Programming Input. Low = GND, High
= VCC or Float. Grounding VID4 adds 400mV to the output
sense voltage.
NC (Pin 8): No Connect.
GND (Pin 9): Ground. Connect to regulator signal ground.
FB (Pin 10): Feedback Input. Connect to the 0.6V feedback
pin of a compatible regulator.
170661f
3
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