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| AAT1151 Datasheet, PDF (4/16 Pages) Advanced Analogic Technologies – 850kHz 700mA Synchronous Buck DC/DC Converter | |||
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DATA SHEET
AAT1151
850kHz 700mA Synchronous Buck DC/DC Converter
Electrical Characteristics1
VIN = VCC = VP = 5V, TA = -40°C to 85°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol
VIN
VOUT
VUVLO
VUVLO(HYS)
IIL
IIH
IQ
ISHDN
ILIM
RDS(ON)H
RDS(ON)L
ï¨
ïVOUT
(VOUT*ïVIN)
ïVOUT/VOUT
FOSC
VEN(L)
VEN(H)
TSD
THYS
Description
Input Voltage Range
Output Voltage Tolerance
Under-Voltage Lockout
Under-Voltage Lockout Hysteresis
Input Low Current
Input High Current
Quiescent Supply Current
Shutdown Current
Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
Efï¬ciency
Load Regulation
Line Regulation
Oscillator Frequency
Enable Threshold Low
Enable Threshold High
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
Conditions
VIN = VOUT + 0.2 to 5.5V, IOUT = 0 to 700mA
VIN Rising
VIN Falling
VIN = VFB = 5.5V
VIN = VFB = 0V
No Load, VFB = 0V, VIN = 4.2V, TA = 25°C
VEN = 0V, VIN = 5.5V
TA = 25°C
TA = 25°C
TA = 25°C
IOUT = 300mA, VIN = 3.5V
VIN = 4.2V, ILOAD = 0 to 700mA
VIN = 2.7V to 5.5V
TA = 25°C
Min
2.7
-3.0
1.2
1.2
600
1.4
Typ
Max
5.5
+3.0
2.5
Units
V
%
V
250
mV
1.0
μA
1.0
μA
210 300
μA
1.0
μA
A
110 150 mï
100 150 mï
92
%
ï±0.9
%
ï±0.1
850
1200
0.6
140
15
%/V
kHz
V
V
°C
°C
1. The AAT1151 is guaranteed to meet performance specifications over the -40°C to +85°C operating range and is assured by design, characterization, and correlation with sta-
tistical process controls.
Skyworks Solutions, Inc. ⢠Phone [781] 376-3000 ⢠Fax [781] 376-3100 ⢠sales@skyworksinc.com ⢠www.skyworksinc.com
4
201991B ⢠Skyworks Proprietary Information ⢠Products and Product Information are Subject to Change Without Notice. ⢠March 18, 2013
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