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LTC1504IS8-3.3

Description
Switching Regulator LTC1504 - 500mA Low Voltage Step-Down Synchronous Switching Regulator
Categorysemiconductor    Power management IC    Voltage regulator and the voltage controller    Switching voltage stabilizer   
File Size250KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC1504IS8-3.3 Overview

Switching Regulator LTC1504 - 500mA Low Voltage Step-Down Synchronous Switching Regulator

LTC1504IS8-3.3 Parametric

Parameter NameAttribute value
MakerADI
Product Categoryswitching regulator
RoHSN
Installation styleSMD/SMT
Package/boxSO-8
Output current0.8 A
Maximum input voltage10 V
Minimum input voltage4 V
seriesLTC1504
high1.75 mm
Working power current3 mA
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

LTC1504IS8-3.3 Related Products

LTC1504IS8-3.3 LTC1504CS8#TRPBF LTC1504CS8-3.3#TR LTC1504CS8#TR LTC1504IS8-3.3#TR LTC1504IS8#TR LTC1504IS8#PBF
Description Switching Regulator LTC1504 - 500mA Low Voltage Step-Down Synchronous Switching Regulator Switching Voltage Regulators Low Volt Stepdn Syn Switcher Switching Regulator LTC1504 - 500mA Low Voltage Step-Down Synchronous Switching Regulator Switching Regulator LTC1504 - 500mA Low Voltage Step-Down Synchronous Switching Regulator Switching Regulator LTC1504 - 500mA Low Voltage Step-Down Synchronous Switching Regulator Switching Regulator LTC1504 - 500mA Low Voltage Step-Down Synchronous Switching Regulator Switching regulatorLow Volt Stepdn Syn Switcher
Maker ADI ADI ADI ADI ADI ADI ADI
Maximum input voltage 10 V 10 V 10 V 10 V 10 V 10 V 10 V
Minimum input voltage 4 V 4 V 4 V 4 V 4 V 4 V 4 V
Product Category switching regulator - - - switching regulator switching regulator switching regulator
Installation style SMD/SMT - - - SMD/SMT SMD/SMT SMD/SMT
Package/box SO-8 - - - SO-8 SO-8 SO-8
Output current 0.8 A - - - 0.8 A 0.8 A 0.8 A
series LTC1504 - - - LTC1504 LTC1504 LTC1504
high 1.75 mm - - - 1.75 mm 1.75 mm 1.75 mm
Working power current 3 mA - - - 3 mA 3 mA 3 mA
Maximum operating temperature - 70 °C 70 °C 70 °C - - + 85 C
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