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AIC1577CSTB

Description
Switching Regulator/Controller, Current-mode, 550kHz Switching Freq-Max, MOS, PDSO8
CategoryPower/power management    The power supply circuit   
File Size320KB,16 Pages
ManufacturerAIC [Analog Intergrations Corporation]
Download Datasheet Parametric Compare View All

AIC1577CSTB Overview

Switching Regulator/Controller, Current-mode, 550kHz Switching Freq-Max, MOS, PDSO8

AIC1577CSTB Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerAIC [Analog Intergrations Corporation]
package instructionSOP, SOP8,.25
Reach Compliance Codecompliant
control modeCURRENT-MODE
JESD-30 codeR-PDSO-G8
JESD-609 codee0
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Certification statusNot Qualified
surface mountYES
Maximum switching frequency550 kHz
technologyMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Base Number Matches1
AIC1577
External NMOS Step-Down PWM Controller
DESCRIPTION
The AIC1577 is a current mode switching
regulator controller that drives external N-
channel
power
MOSFET
using
a
fixed
frequency architecure. It uses external divider
to adjust output voltage from 0.8V to 20V with
excellent line and load regulation. A maximum
high duty cycle limit of 95% provides low
dropout operation which extends operating
time in battery-operated systems.
Switching frequency up to 500KHz are
achievable thus allowing smaller sized filter
components. The operating current level is
user-programmable via an external current
sense
resistor.
It
also
provide
output
FEATURES
N-Channel MOSFET Drive
Operating Input Voltage from 4.5V to 24V
Wide Ouput Range : 0.8V to 20V
±1.5%
0.8V Reference
Low Dropout Operation : 95% Duty Cycle
500KHz Fixed Constant Frequency
Low Standby Current, I
Q
Typically 720µA
Logic-Control Micropower Shutdown
Output Overvoltage Protection
Internal Diode for Bootstrapped Gate Drive
Current Mode Operation for Excellent Line and
Load Transient Response
Available in an 8-Lead SO and MSOP Package
APPLICATIONS
LCD Monitor
Palmtop Computers, PDAs
Wireless Modems
On-Card Switching Regulators
DC Power Distribution Systems
overvoltage protection under fault conditions.
A multifunction pin (I
TH
/RUN) allows external
compensation
for
optimum
load
step
response plus shutdown. Soft start can also
be implemented with this pin to properly
sequence supplies. Package available are in
SOP-8 and MSOP-8 for SMD.
Analog Integrations Corporation
Si-Soft Research Center
3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C.
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
DS-1577G-01 121808
1

AIC1577CSTB Related Products

AIC1577CSTB AIC1577POTB AIC1577GOTR AIC1577GSTB AIC1577COTR AIC1577COTB
Description Switching Regulator/Controller, Current-mode, 550kHz Switching Freq-Max, MOS, PDSO8 Switching Regulator/Controller, Current-mode, 550kHz Switching Freq-Max, MOS, PDSO8 Switching Regulator/Controller Switching Regulator/Controller Switching Regulator/Controller, Current-mode, 550kHz Switching Freq-Max, MOS, PDSO8 Switching Regulator/Controller, Current-mode, 550kHz Switching Freq-Max, MOS, PDSO8
Maker AIC [Analog Intergrations Corporation] AIC [Analog Intergrations Corporation] AIC [Analog Intergrations Corporation] AIC [Analog Intergrations Corporation] AIC [Analog Intergrations Corporation] AIC [Analog Intergrations Corporation]
package instruction SOP, SOP8,.25 TSSOP, TSSOP8,.19 , , TSSOP, TSSOP8,.19 TSSOP, TSSOP8,.19
Reach Compliance Code compliant compliant compliant compliant compliant compliant
Base Number Matches 1 1 1 1 1 1
Is it Rohs certified? incompatible conform to - - incompatible incompatible
control mode CURRENT-MODE CURRENT-MODE - - CURRENT-MODE CURRENT-MODE
JESD-30 code R-PDSO-G8 R-PDSO-G8 - - R-PDSO-G8 R-PDSO-G8
Number of terminals 8 8 - - 8 8
Maximum operating temperature 85 °C 85 °C - - 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C - - -40 °C -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY - - PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP TSSOP - - TSSOP TSSOP
Encapsulate equivalent code SOP8,.25 TSSOP8,.19 - - TSSOP8,.19 TSSOP8,.19
Package shape RECTANGULAR RECTANGULAR - - RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE, THIN PROFILE, SHRINK PITCH - - SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Certification status Not Qualified Not Qualified - - Not Qualified Not Qualified
surface mount YES YES - - YES YES
Maximum switching frequency 550 kHz 550 kHz - - 550 kHz 550 kHz
technology MOS MOS - - MOS MOS
Temperature level INDUSTRIAL INDUSTRIAL - - INDUSTRIAL INDUSTRIAL
Terminal form GULL WING GULL WING - - GULL WING GULL WING
Terminal pitch 1.27 mm 0.635 mm - - 0.635 mm 0.635 mm
Terminal location DUAL DUAL - - DUAL DUAL
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