LT1912EMSE#PBF Linear Technology, LT1912EMSE#PBF Datasheet - Page 3

• Manufacturer Part Number: LT1912EMSE#PBF
• Description: IC, STEP-DOWN REGULATOR, MSOP-10
• Manufacturer: Linear Technology

Specifications of LT1912EMSE#PBF

• Primary Input Voltage: 36V
• No. Of Outputs: 1
• Output Voltage: 20V
• Output Current: 2A
• No. Of Pins: 10
• Operating Temperature Range: -40°C To +125°C
• Supply Voltage Range: 3.6V To 36V
• Msl: MSL 1 - Unlimited
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
noted. (Note 2)
PARAMETER
Feedback Voltage
FB Pin Bias Current (Note 3)
FB Voltage Line Regulation
Error Amp g
Error Amp Gain
V
V
V
V
Switching Frequency
Minimum Switch Off-Time
Switch Current Limit
Switch V
Boost Schottky Reverse Leakage
Minimum Boost Voltage (Note 4)
BOOST Pin Current
RUN/SS Pin Current
RUN/SS Input Voltage High
RUN/SS Input Voltage Low
SYNC Low Threshold
SYNC High Threshold
SYNC Pin Bias Current
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 LT1912E is guaranteed to meet performance specifications
from 0°C to 125°C. Specifications over the –40°C to 125°C operating
C
C
C
C
Source Current
Sink Current
Pin to Switch Current Gain
Clamp Voltage
CESAT
m
CONDITIONS
V
4V < V
R
Duty Cycle = 5%
I
V
I
V
V
SW
SW
FB
SW
RUN/SS
SYNC
T
= 187k
= 0.8V, V
= 2A
= 1A
A
= 10V, V
IN
= 0V
= 25°C. V
= 2.5V
< 36V
The
C
BD
= 0.4V
= 0V
l
IN
denotes the specifications which apply over the full operating
= 10V, V
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: Bias current flows out of the FB pin.
Note 4: This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the switch.
RUN/SS
= 10V V
BOOST
= 15V, V
l
l
l
l
MIN
780
775
160
BD
3.2
0.2
0.5
= 3.3V unless otherwise
0.002
1000
0.02
TYP
790
790
200
500
3.5
3.7
1.5
0.1
25
45
45
60
22
7
2
5
LT1912
MAX
0.01
800
805
240
150
4.2
2.1
2.5
0.7
30
35
10
2
UNITS
µMho
1912fa
3
%/V
kHz
A/V
mV
mV
mV
mA
nA
µA
µA
nS
µA
µA
µA
V
A
V
V
V
V
V