LTC3458EDE#PBF Linear Technology, LTC3458EDE#PBF Datasheet - Page 3

• Manufacturer Part Number: LTC3458EDE#PBF
• Description: IC CONV DC/DC SYNC BOOST 12DFN
• Manufacturer: Linear Technology
• Type: Step-Up (Boost)r

Specifications of LTC3458EDE#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 2 ~ 7.5 V
• Current - Output: 1.4A
• Frequency - Switching: 1.5MHz
• Voltage - Input: 1.5 ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 12-DFN
• Dc To Dc Converter Type: Step Up
• Pin Count: 12
• Input Voltage: 6V
• Output Voltage: 2 to 7.5V
• Switching Freq: 1.15MHz
• Output Current: 1.6A
• Efficiency: 93%
• Package Type: DFN EP
• Output Type: Adjustable
• Switching Regulator: Yes
• Mounting: Surface Mount
• Input Voltage (min): 1.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Primary Input Voltage: 6V
• No. Of Outputs: 1
• No. Of Pins: 12
• Operating Temperature Range: -40°C To +85°C
• Msl: MSL 1 - Unlimited
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Compliant

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
PARAMETER
Error Amplifier Sink Current
SYNC Input High
SYNC Input Low
SHDN Input High
SHDN Input Low
BURST Mode Peak Current
BURST Threshold Voltage
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: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
TYPICAL PERFOR A CE CHARACTERISTICS
2000
1800
1600
1400
1200
1000
–200
800
600
400
200
160
140
120
100
80
60
40
20
0
0
2.0
50
I
Typical Burst Mode Threshold and
Hysteresis vs R
LIMIT
BURST
I
INTO
I
BURST PEAK
ZERO
2.5
I
LIMIT
, I
100
BURST
OUT OF
BURST
3.0
150
R
, T
3.5
BURST
V
BURST
ZERO
IN
(V)
4.0
(kΩ)
200
Currents
V
L = 10μH
R
4.5
OUT
ILIM
W
250
= 7V
= 124k
5.0
3458 G01
3458 G04
U
5.5
300
250
200
150
100
1.8
1,7
1.6
1.4
1.5
50
0
1.5
–45
A
Maximum Load Current in Burst
Current Limit Accuracy
R
= 25°C. V
R
ILIM
–30
ILIMIT
CONDITIONS
R
2.0
ILIM
= 124k
–15
The
= 124k
2.5
= 124k
3.3V
TEMPERATURE (°C)
●
IN
0
3.0
denotes the specifications which apply over the full operating
OUT
= 3.3V, V
15
V
IN
3.5
(V)
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 3: The LTC3458 is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
30
5V
4.0
OUT
45
OUT
4.5
60
= 5V, R
7.5V
5.0
75
3458 G05
(T
3458 G02
OUT
A
5.5
90
T
= 25°C unless otherwise specified)
= 200k, unless otherwise noted.
600
550
500
450
400
350
300
250
200
150
100
20
10
15
●
●
●
●
5
0
400
–40
Oscillator Programming Resistor
Burst Mode Quiescent Current
V
V
IN
OUT
1.25
MIN
1.5
= 3.3V
600
OSCILLATOR FREQUENCY (kHz)
= 5V
–15
TEMPERATURE (°C)
800
1.10
TYP
10
0.4
7
I
I
VIN
VOUT
1000
LTC3458
35
MAX
0.35
1200
0.3
60
1400
3458 G06
3458 G03
UNITS
3458fa
3
85
μA
V
V
V
V
A
V