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LTC1504CS8#PBF

Description
Conv DC-DC 4V to 10V Synchronous Step Down Single-Out 0.5A 8-Pin SOIC N Tube
File Size204KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
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LTC1504CS8#PBF Overview

Conv DC-DC 4V to 10V Synchronous Step Down Single-Out 0.5A 8-Pin SOIC N Tube

LTC1504CS8#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusLTB
HTS8542.39.00.01
TypeSynchronous Step Down
Output TypeAdjustable
Switching Frequency (kHz)250
Switching RegulatorYes
Number of Outputs1
Maximum Output Current (A)0.5
Minimum Input Voltage (V)4
Maximum Input Voltage (V)10
Operating Supply Voltage (V)4 to 10
Efficiency (%)92
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
Supplier Temperature GradeCommercial
PackagingTube
Pin Count8
Standard Package NameSOP
Supplier PackageSOIC N
MountingSurface Mount
Package Height1.5(Max)
Package Length5(Max)
Package Width3.99(Max)
PCB changed8
Lead ShapeGull-wing
Final Electrical Specifications
LTC1504
500mA Low Voltage
Step-Down Synchronous
Switching Regulator
FEATURES
s
s
s
s
s
s
s
s
s
DESCRIPTION
The LTC
®
1504 is a self-contained, high efficiency syn-
chronous buck switching regulator. It includes a pair of
on-chip 1.5Ω power switches, enabling it to supply up to
500mA of load current. Efficiency peaks at 92%, minimiz-
ing heat and wasted power. The synchronous buck archi-
tecture allows the output to source or sink current as
required to keep the output voltage in regulation.
The LTC1504 is available in adjustable and fixed 3.3V
output versions. An adjustable current limit circuit pro-
vides protection from overloads. The internal 1% refer-
ence combined with a sophisticated voltage feedback loop
provides optimum output voltage accuracy and fast load
transient response. The LTC1504 is specified to operate
with input voltages between 4V and 10V. Contact the LTC
factory for guaranteed specifications at 2.7V supply.
The LTC1504 is available in a plastic SO-8 package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
500mA Output Current at 3.3V Output
Up to 92% Peak Efficiency
Internal Reference Trimmed to 1%
Output Can Source or Sink Current
Requires as Few as Four External Components
Input Voltage Range: 4V to 10V
Adjustable Current Limit
Small SO-8 Package
200kHz Switching Frequency Can be
Synchronized Up to 500kHz
APPLICATIONS
s
s
s
s
Small Portable Digital Systems
Control Outputs
Daisy-Chained
Active Termination
Auxiliary Output Voltage Supplies
Minimum Part Count/Size Switchers
TYPICAL APPLICATION
Minimum Part Count 5V to 3.3V Regulator
NC
I
MAX
5V
SHUTDOWN
SHDN
SW
L
EXT
3.3V AT 500mA
EFFICIENCY (%)
100
90
80
70
60
50
40
30
20
1504 • TA01
5V to 3.3V Efficiency
+
C
IN
V
CC
LTC1504-3.3
GND
SS
SENSE
COMP
1000pF
+
C
OUT
C
IN
: AVX TPSC226M016R0375
C
OUT
: AVX TAJC476M010
L
EXT
: COILTRONICS CTX50-1P
NC
10
0
10
100
LOAD CURRENT (mA)
500
1504 • TA02
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
U
U
U
1

LTC1504CS8#PBF Related Products

LTC1504CS8#PBF LTC1504CS8-3.3#PBF LTC1504CS8-3.3#TRPBF LTC1504IS8#TRPBF LTC1504IS8-3.3#PBF LTC1504IS8-3.3#TRPBF
Description Conv DC-DC 4V to 10V Synchronous Step Down Single-Out 0.5A 8-Pin SOIC N Tube Conv DC-DC 4V to 10V Synchronous Step Down Single-Out 3.3V 0.5A 8-Pin SOIC N Tube Conv DC-DC 4V to 10V Synchronous Step Down Single-Out 3.3V 0.5A 8-Pin SOIC N T/R Conv DC-DC 4V to 10V Synchronous Step Down Single-Out 0.5A 8-Pin SOIC N T/R Conv DC-DC 4V to 10V Synchronous Step Down Single-Out 3.3V 0.5A 8-Pin SOIC N Tube Conv DC-DC 4V to 10V Synchronous Step Down Single-Out 3.3V 0.5A 8-Pin SOIC N T/R
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Compliant Compliant Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Part Status LTB LTB LTB LTB LTB LTB
HTS 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01
Type Synchronous Step Down Synchronous Step Down Synchronous Step Down Synchronous Step Down Synchronous Step Down Synchronous Step Down
Output Type Adjustable Fixed Fixed Adjustable Fixed Fixed
Switching Frequency (kHz) 250 250 250 250 250 250
Switching Regulator Yes Yes Yes Yes Yes Yes
Number of Outputs 1 1 1 1 1 1
Maximum Output Current (A) 0.5 0.5 0.5 0.5 0.5 0.5
Minimum Input Voltage (V) 4 4 4 4 4 4
Maximum Input Voltage (V) 10 10 10 10 10 10
Operating Supply Voltage (V) 4 to 10 4 to 10 4 to 10 4 to 10 4 to 10 4 to 10
Efficiency (%) 92 92 92 92 92 92
Maximum Operating Temperature (°C) 70 70 70 70 70 70
Supplier Temperature Grade Commercial Commercial Commercial Industrial Industrial Industrial
Packaging Tube Tube Tape and Reel Tape and Reel Tube Tape and Reel
Pin Count 8 8 8 8 8 8
Standard Package Name SOP SOP SOP SOP SOP SOP
Supplier Package SOIC N SOIC N SOIC N SOIC N SOIC N SOIC N
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max)
Package Length 5(Max) 5(Max) 5(Max) 5(Max) 5(Max) 5(Max)
Package Width 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max)
PCB changed 8 8 8 8 8 8
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing
Output Voltage (V) - 3.3 3.3 - 3.3 3.3
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