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ADP2138ACBZ-2.5-R7 Arkusz danych(PDF) 3 Page - Analog Devices

Numer części ADP2138ACBZ-2.5-R7
Szczegółowy opis  Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter
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Strona internetowa  http://www.analog.com
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ADP2138ACBZ-2.5-R7 Arkusz danych(HTML) 3 Page - Analog Devices

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Data Sheet
ADP2138/ADP2139
Rev. C | Page 3 of 20
SPECIFICATIONS
VIN = 3.6 V, VOUT = 0.8 V − 3.3 V, TJ = −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical specifications,
unless otherwise noted. All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).
Table 1.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
Input Voltage Range
2.3
5.5
V
Undervoltage Lockout Threshold
VIN rising
2.3
V
VIN falling
2.00
2.15
2.25
V
OUTPUT CHARACTERISTICS
Output Voltage Accuracy
PWM mode
−2
+2
%
Line Regulation
VIN = 2.3 V to 5.5 V, PWM mode
0.25
%/V
Load Regulation
ILOAD = 0 mA − 800 mA
−0.95
%/A
PWM TO POWER SAVE MODE CURRENT THRESHOLD
100
mA
INPUT CURRENT CHARACTERISTICS
DC Operating Current
ILOAD = 0 mA, device not switching
23
30
μA
Shutdown Current
EN = 0 V, TA = TJ = −40°C to +85°C
0.2
1.0
μA
SW CHARACTERISTICS
SW On Resistance
PFET
155
240
NFET
115
200
Current Limit
PFET switch peak current limit
1100
1500
1650
mA
Discharge Switch (ADP2139)
100
Ω
ENABLE AND MODE CHARACTERISTICS
Input High Threshold
1.2
V
Input Low Threshold
0.4
V
Input Leakage Current
EN/MODE = 0 V (min), 3.6 V (max )
−1
0
+1
μA
OSCILLATOR FREQUENCY
2.6
3.0
3.4
MHz
START-UP TIME
250
μs
THERMAL CHARACTERISTICS
Thermal Shutdown Threshold
150
°C
Thermal Shutdown Hysteresis
20
°C
INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS
TA = −40°C to +125°C, unless otherwise specified. All limits at temperature extremes are guaranteed via correlation using standard
statistical quality control (SQC).
Table 2.
Parameter
Symbol
Min
Typ
Max
Unit
MINIMUM INPUT AND OUTPUT CAPACITANCE
CMIN
4.7
µF
CAPACITOR ESR
RESR
0.001
1
Ω


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