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AAT1130 数据表(PDF) 4 Page - Advanced Analogic Technologies

部件名 AAT1130
功能描述  2.5MHz 500mA Step-Down DC/DC Converter
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制造商  ANALOGICTECH [Advanced Analogic Technologies]
网页  http://www.analogictech.com
标志 ANALOGICTECH - Advanced Analogic Technologies

AAT1130 数据表(HTML) 4 Page - Advanced Analogic Technologies

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AAT1130
2.5MHz 500mA Step-Down DC/DC Converter
SwitchRegTM
PRODUCT DATASHEET
4
1130.2008.08.1.1
www .analogictech.com
AAT1130
2.5MHz 500mA Step-Down DC/DC Converter
SwitchRegTM
PRODUCT DATASHEET
4
1130.2008.08.1.1
www .analogictech.com
Electrical Characteristics1
VIN = 3.6V, CIN = COUT = 4.7μF, L = 1μH. TA = -40°C to 85°C, unless otherwise noted. Typical values are TA = 25°C.
Symbol
Description
Conditions
Min
Typ
Max
Units
VIN
Input Voltage
2.7
5.5
V
VOUT
Output Voltage Range
0.6
1.8
V
VUVLO
UVLO Threshold
VIN rising
2.65
V
Hysteresis
100
mV
IQ
Quiescent Current
Not Switching
60
90
μA
ISHDN
Shutdown Current
EN = AGND = PGND
1.0
μA
VOUT_TOL (fixed
output version)
Output Voltage Tolerance
VIN = 2.7V to 5.5V, 0 to 500mA Load
-4
4
%
VFB_ACC
Feedback Voltage Accuracy
TA = 25°C, No Load
0.59
0.6
0.61
V
ILIM
Valley Current Limit
550
650
mA
RDS(ON)H
High Side Switch On-Resistance
0.35
Ω
RDS(ON)L
Low Side Switch On-Resistance
0.25
Ω
fON
Switch On-Time
VIN = 3.6V, VOUT = 1.2V
120
ns
tOFF(MIN)
Minimum Off-Time
75
ns
ILXLEAK
LX Leakage Current
VIN = 5.5, VLX = 0 to VIN
1
μA
IFBLEAK
FB Leakage Current
VFB = 5.5V, VEN = 0V, Adj Only
0.2
μA
tS
Startup Time
From EN Asserted to Output Regulation
150
μs
fS
Switching Frequency
VOUT = 1.2V, 500mA Load
2.5
MHz
TSD
Over-Temperature Shutdown
Threshold
140
°C
THYS
Over-Temperature Shutdown
Hysteresis
15
°C
VEN(L)
Enable Threshold Low
0.6
V
VEN(H)
Enable Threshold High
1.4
V
IEN
Enable Pin Current
VIN = VFB =5.5V
-1.0
1.0
μA
1. The AAT1130 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.


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