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LT1912EDD#TRPBF

Description
Conv DC-DC 3.6V to 36V Step Down Single-Out 0.79V to 20V 2A Automotive 10-Pin DFN EP T/R
File Size344KB,24 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LT1912EDD#TRPBF Overview

Conv DC-DC 3.6V to 36V Step Down Single-Out 0.79V to 20V 2A Automotive 10-Pin DFN EP T/R

LT1912EDD#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
TypeStep Down
Output TypeAdjustable
Switching Frequency (kHz)200 to 500
Switching RegulatorYes
Number of Outputs1
Output Voltage (V)0.79 to 20
Maximum Output Current (A)2
Minimum Input Voltage (V)3.6
Maximum Input Voltage (V)36
Operating Supply Voltage (V)3.6 to 36
Typical Switch Current (A)3.7
Typical Quiescent Current (uA)0.01
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)125
Supplier Temperature GradeExtended
PackagingTape and Reel
Pin Count10
Standard Package NameDFN
Supplier PackageDFN EP
MountingSurface Mount
Package Height0.75(Max)
Package Length3
Package Width3
PCB changed10
Lead ShapeNo Lead
LT1912
36V, 2A, 500kHz Step-Down
Switching Regulator
FEATURES
DESCRIPTION
The LT
®
1912 is an adjustable frequency (200kHz to 500kHz)
monolithic step-down switching regulator that accepts
input voltages up to 36V. A high efficiency 0.25Ω switch
is included on the die along with a boost Schottky diode
and the necessary oscillator, control and logic circuitry.
Current mode topology is used for fast transient response
and good loop stability. The LT1912 allows the use of
ceramic capacitors resulting in low output ripple while
keeping total solution size to a minimum. The low current
shutdown mode reduces input supply current to less than
1µA while a resistor and capacitor on the RUN/SS pin
provide a controlled output voltage ramp (soft-start). The
LT1912 is available in 10-pin MSOP and 3mm
×
3mm DFN
packages with exposed pads for low thermal resistance.
L,
LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
Wide Input Range: Operation From 3.6V to 36V
2A Maximum Output Current
Adjustable Switching Frequency: 200kHz to 500kHz
Low Shutdown Current: I
Q
< 1µA
Integrated Boost Diode
Synchronizable Between 250kHz to 500kHz
Saturating Switch Design: 0.25Ω On-Resistance
0.790V Feedback Reference Voltage
Output Voltage: 0.79V to 20V
Soft-Start Capability
Small 10-Pin Thermally Enhanced MSOP and
(3mm
×
3mm) DFN Packages
APPLICATIONS
Automotive Battery Regulation
Set-Top Box
Distributed Supply Regulation
Industrial Supplies
Wall Transformer Regulation
TYPICAL APPLICATION
3.3V Step-Down Converter
V
IN
4.5V TO 36V
V
IN
OFF ON
20k
4.7µF
470pF
68.1k
RUN/SS
BD
BOOST
EFFICIENCY (%)
0.47µF
V
C
R
T
316k
100k
47µF
LT1912
SW
6.8µH
80
70
60
50
0
1912 TA01
Efficiency
V
OUT
3.3V
2A
100
90
V
OUT
= 5V
V
OUT
= 3.3V
SYNC
GND
FB
V
IN
= 12V
L = 6.8µF
F = 500kHz
0.5
1.0
1.5
LOAD CURRENT (A)
2
1912 TA01b
1912fa
1

LT1912EDD#TRPBF Related Products

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Description Conv DC-DC 3.6V to 36V Step Down Single-Out 0.79V to 20V 2A Automotive 10-Pin DFN EP T/R Conv DC-DC 3.6V to 36V Step Down Single-Out 0.79V to 20V 2A Automotive 10-Pin DFN EP Tube Conv DC-DC 3.6V to 36V Step Down Single-Out 0.79V to 20V 2A Automotive 10-Pin MSOP EP Tube Conv DC-DC 3.6V to 36V Step Down Single-Out 0.79V to 20V 2A Automotive 10-Pin MSOP EP T/R
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Active
Type Step Down Step Down Step Down Step Down
Output Type Adjustable Adjustable Adjustable Adjustable
Switching Frequency (kHz) 200 to 500 200 to 500 200 to 500 200 to 500
Switching Regulator Yes Yes Yes Yes
Number of Outputs 1 1 1 1
Output Voltage (V) 0.79 to 20 0.79 to 20 0.79 to 20 0.79 to 20
Maximum Output Current (A) 2 2 2 2
Minimum Input Voltage (V) 3.6 3.6 3.6 3.6
Maximum Input Voltage (V) 36 36 36 36
Operating Supply Voltage (V) 3.6 to 36 3.6 to 36 3.6 to 36 3.6 to 36
Typical Switch Current (A) 3.7 3.7 3.7 3.7
Typical Quiescent Current (uA) 0.01 0.01 0.01 0.01
Minimum Operating Temperature (°C) -40 -40 -40 -40
Maximum Operating Temperature (°C) 125 125 125 125
Supplier Temperature Grade Extended Extended Extended Extended
Packaging Tape and Reel Tube Tube Tape and Reel
Pin Count 10 10 10 10
Standard Package Name DFN DFN SOP SOP
Supplier Package DFN EP DFN EP MSOP EP MSOP EP
Mounting Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.75(Max) 0.75(Max) 0.86 0.86
Package Length 3 3 3 3
Package Width 3 3 3 3
PCB changed 10 10 10 10
Lead Shape No Lead No Lead Gull-wing Gull-wing
HTS - 8542.39.00.01 8542.39.00.01 8542.39.00.01
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