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LT1370IR#TRPBF

Description
Switching Regulator 500kHz 6A Hi Eff Sw Reg
CategoryPower/power management    The power supply circuit   
File Size166KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
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LT1370IR#TRPBF Overview

Switching Regulator 500kHz 6A Hi Eff Sw Reg

LT1370IR#TRPBF Parametric

Parameter NameAttribute value
Brand NameAnalog Devices Inc
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerADI
package instruction,
Contacts7
Manufacturer packaging code05-08-1462
Reach Compliance Codenot_compliant
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Maximum input voltage25 V
Minimum input voltage2.7 V
Nominal input voltage5 V
JESD-30 codeR-PSSO-G7
JESD-609 codee3
length10.2235 mm
Humidity sensitivity level1
Number of functions1
Number of terminals7
Maximum operating temperature70 °C
Minimum operating temperature
Maximum output current10 A
Package body materialPLASTIC/EPOXY
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height4.877 mm
surface mountYES
Switch configurationBOOST
Maximum switching frequency580 kHz
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn) - with Nickel (Ni) barrier
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationSINGLE
Maximum time at peak reflow temperature30
width8.89 mm
Base Number Matches1
LT1370
500kHz High Efficiency
6A Switching Regulator
FEATURES
DESCRIPTION
The LT
®
1370 is a monolithic high frequency current mode
switching regulator. It can be operated in all standard
switching configurations including boost, buck, flyback,
forward, inverting and “Cuk.” A 6A high efficiency switch
is included on the die, along with all oscillator, control and
protection circuitry.
The LT1370 typically consumes only 4.5mA quiescent
current and has higher efficiency than previous parts.
High frequency switching allows for very small inductors
to be used.
New design techniques increase flexibility and maintain
ease of use. Switching is easily synchronized to an exter-
nal logic level source. A logic low on the Shutdown pin
reduces supply current to 12µA. Unique error amplifier
circuitry can regulate positive or negative output voltage
while maintaining simple frequency compensation tech-
niques. Nonlinear error amplifier transconductance
reduces output overshoot on start-up or overload recov-
ery. Oscillator frequency shifting protects external com-
ponents during overload conditions.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Faster Switching with Increased Efficiency
Uses Small Inductors: 4.7µH
All Surface Mount Components
Low Minimum Supply Voltage: 2.7V
Quiescent Current: 4.5mA Typ
Current Limited Power Switch: 6A
Regulates Positive or Negative Outputs
Shutdown Supply Current: 12µA Typ
Easy External Synchronization
Switch Resistance: 0.065Ω Typ
APPLICATIONS
Boost Regulators
Laptop Computer Supplies
Multiple Output Flyback Supplies
Inverting Supplies
TYPICAL APPLICATION
5V to 12V Boost Converter
5V
L1*
D1
MBRD835L
V
OUT
12V
R1
53.6k
1%
92
90
V
IN
OFF
ON
S/S
LT1370
V
SW
EFFICIENCY (%)
88
86
84
82
80
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
LOAD CURRENT (A)
LT1370 • TA02
+
C1**
22µF
25V
FB
GND
C2
0.047µF
R3
2k
V
C
+
R2
6.19k
1%
C3
0.0047µF
LT1370 • TA01
C4**
22µF
25V
×
2
*COILTRONICS
UP2-4R7 (4.7µH)
UP4-100 (10µH)
**AVX TPSD226M025R0200
MAX I
OUT
L1
I
OUT
4.7µH 1.8A
10µH 2A
U
U
U
12V Output Efficiency
V
IN
= 5V
L = 10µH
sn1370 1370fs
1

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Is it Rohs certified? incompatible incompatible incompatible incompatible incompatible incompatible incompatible incompatible
package instruction , D2PAK-7 LEAD FREE, PLASTIC, D2PAK-7 TO-263, TO-220, TO-220, TO-263, SMSIP7H,.55,50TB ,
Reach Compliance Code not_compliant not_compliant not_compliant not_compliant not_compliant not_compliant not_compliant not_compliant
Analog Integrated Circuits - Other Types SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR
control mode CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE
Maximum input voltage 25 V 25 V 25 V 25 V 25 V 25 V 25 V 25 V
Minimum input voltage 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V
Nominal input voltage 5 V 5 V 5 V 5 V 5 V 5 V 5 V 5 V
JESD-30 code R-PSSO-G7 R-PSSO-G7 R-PSSO-G7 R-PSSO-G7 R-PZFM-T7 R-PZFM-T7 R-PSSO-G7 R-PSSO-G7
JESD-609 code e3 e0 e3 e3 e0 e0 e0 e0
Number of functions 1 1 1 1 1 1 1 1
Number of terminals 7 7 7 7 7 7 7 7
Maximum operating temperature 70 °C 85 °C 70 °C 70 °C 70 °C 70 °C 70 °C 70 °C
Maximum output current 10 A 10 A 10 A 10 A 10 A 10 A 10 A 10 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE FLANGE MOUNT FLANGE MOUNT SMALL OUTLINE SMALL OUTLINE
surface mount YES YES YES YES NO NO YES YES
Switch configuration BOOST BOOST BOOST BOOST BOOST BOOST BOOST BOOST
Maximum switching frequency 580 kHz 580 kHz 580 kHz 580 kHz 580 kHz 580 kHz 580 kHz 580 kHz
Temperature level COMMERCIAL INDUSTRIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
Terminal surface Matte Tin (Sn) - with Nickel (Ni) barrier Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier Matte Tin (Sn) - with Nickel (Ni) barrier Matte Tin (Sn) - with Nickel (Ni) barrier Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier Tin/Lead (Sn/Pb) - with Nickel (Ni) barrier
Terminal form GULL WING GULL WING GULL WING GULL WING THROUGH-HOLE THROUGH-HOLE GULL WING GULL WING
Terminal location SINGLE SINGLE SINGLE SINGLE ZIG-ZAG ZIG-ZAG SINGLE SINGLE
Maker ADI ADI ADI ADI ADI ADI - ADI
length 10.2235 mm 10.2235 mm 10.2235 mm 10.2235 mm - - 10.2235 mm 10.2235 mm
Humidity sensitivity level 1 - 1 1 1 1 - 1
Peak Reflow Temperature (Celsius) 260 - 260 260 NOT SPECIFIED NOT SPECIFIED - 255
Certification status Not Qualified - Not Qualified Not Qualified Not Qualified Not Qualified - Not Qualified
Maximum seat height 4.877 mm 4.877 mm 4.877 mm 4.877 mm - - 4.877 mm 4.877 mm
Terminal pitch 1.27 mm 1.27 mm 1.27 mm 1.27 mm - - 1.27 mm 1.27 mm
Maximum time at peak reflow temperature 30 - 30 30 NOT SPECIFIED NOT SPECIFIED - 40
width 8.89 mm 8.89 mm 8.89 mm 8.89 mm - - 8.89 mm 8.89 mm
Control Technology - PULSE WIDTH MODULATION - PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION -
encapsulated code - TO-263 - TO-263 TO-220 TO-220 TO-263 -
Maximum supply current (Isup) - 6 mA - 6 mA 6 mA 6 mA 6 mA -
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