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AAT2786 Scheda tecnica(PDF) 4 Page - Advanced Analogic Technologies

Il numero della parte AAT2786
Spiegazioni elettronici  1.5A Step-Down Converter and 150mA LDO
PDF  27 Pages
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Produttore elettronici  ANALOGICTECH [Advanced Analogic Technologies]
Homepage  http://www.analogictech.com
Logo ANALOGICTECH - Advanced Analogic Technologies

AAT2786 Scheda tecnica(HTML) 4 Page - Advanced Analogic Technologies

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AAT2786
1.5A Step-Down Converter and 150mA LDO
SystemPower
TM
PRODUCT DATASHEET
4
2786.2008.04.1.0
www .analogictech.com
AAT2786
1.5A Step-Down Converter and 150mA LDO
SystemPower
TM
PRODUCT DATASHEET
4
2786.2008.04.1.0
www .analogictech.com
Electrical Characteristics1
VIN=3.6V; TA = -40oC to 85oC unless otherwise noted. Typical values are at TA = 25oC.
Symbol
Description
Conditions
Min
Typ
Max
Units
Step-Down Converter
VIN
Input Voltage
2.5
5.5
V
VOUT
Output Voltage Range
0.6
VIN
V
VUVLO
UVLO Threshold
VIN Rising
2.5
V
Hysteresis
150
mV
VIN Falling
1.7
V
VOUT
Output Voltage Tolerance
IOUT = 0A to 1.5A, VIN = 2.4V to 5.5V
-3.0
3.0
%
IQ
Quiescent Current
No Load
42
90
µA
ISHDN
Shutdown Current
VEN = GND
1.0
µA
ILIM
Current Limit
1.8
A
RDS(ON)H
High Side Switch On-Resistance
0.120
Ω
RDS(ON)L
Low Side Switch On-Resistance
0.085
Ω
ILXLEAK
LX Leakage Current
VIN = 5.5V, VLX = 0 to VIN
1.0
µA
ΔVLOADREG
Load Regulation
ILOAD = 0A to 1.5A
0.5
%
ΔVLINEREG/
ΔVIN
Line Regulation
VIN = 2.4V to 5.5V
0.2
%/V
VFB
Feedback Threshold Voltage Accuracy
(Adjustable Version)
No Load, TA = 25°C
0.591
0.60
0.609
V
IFB
FB Leakage Current
VOUT = 1.0V
0.2
µA
FOSC
Internal Oscillator Frequency
TA = 25°C
1.12
1.4
1.68
MHz
Synchronous Clock
0.60
3.0
TS
Start-Up Time
From Enable to Output Regulation
150
µs
TSD
Over-Temperature Shutdown Threshold
140
°C
THYS
Over-Temperature Shutdown Hysteresis
15
°C
MODE/SYNC
VMODE/SYNC(L) Enable Threshold Low
0.6
V
VMODE/SYNC(H) Enable Threshold High
1.4
V
IMODE/SYNC
Enable Leakage Current
VIN = VEN = 5.5V
1.0
µA
1. The AAT2786 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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