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TPS63021DSJT Datasheet(PDF) 3 Page - Texas Instruments

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No. de Pieza. TPS63021DSJT
Descripción  HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST CONVERTER WITH 4-A SWITCHES
Descarga  24 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS63021DSJT Datasheet(HTML) 3 Page - Texas Instruments

 
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TPS63020
TPS63021
www.ti.com
SLVS916 – APRIL 2010
RECOMMENDED OPERATING CONDITIONS
MIN
NOM
MAX UNIT
Supply voltage at VIN, VINA
1.8
5.5
V
Operating free air temperature range, TA
–40
85
°C
Operating junction temperature range, TJ
–40
125
°C
ELECTRICAL CHARACTERISTICS
over recommended free-air temperature range and over recommended input voltage range (typical at an ambient temperature
range of 25°C) (unless otherwise noted)
DC/DC STAGE
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input voltage range
1.8
5.5
V
VI
Minimum input voltage for startup
0°C
≤ TA ≤ 85°C
1.5
1.8
1.9
V
Minimum input voltage for startup
1.5
1.8
2.0
V
VO
TPS63020 output voltage range
1.2
5.5
V
Minimum duty cycle in step down conversion
30%
40%
VFB
TPS63020 feedback voltage
495
500
505
mV
TPS63021 output voltage
PS/SYNC = VIN
3.267
3.3
3.333
V
Maximum line regulation
0.5%
Maximum load regulation
0.5%
f
Oscillator frequency
2200
2400
2600
kHz
Frequency range for synchronization
2200
2400
2600
kHz
ISW
Average switch current limit
VIN = VINA = 3.6 V, TA = 25°C
3500
4000
4500
mA
High side switch on resistance
VIN = VINA = 3.6 V
50
m
Low side switch on resistance
VIN = VINA = 3.6 V
50
m
VIN and VINA
25
50
mA
Quiescent
IO = 0 mA, VEN = VIN = VINA = 3.6 V,
Iq
current
VOUT = 3.3 V
VOUT
5
10
mA
TPS63021 FB input impedance
VEN = HIGH
1
M
IS
Shutdown current
VEN = 0 V, VIN = VINA = 3.6 V
0.1
1
mA
CONTROL STAGE
Under voltage lockout threshold
VINA voltage decreasing
1.4
1.5
1.6
V
UVLO
Under voltage lockout hysteresis
200
mV
VIL
EN, PS/SYNC input low voltage
0.4
V
VIH
EN, PS/SYNC input high voltage
1.2
V
EN, PS/SYNC input current
Clamped to GND or VINA
0.01
0.1
mA
PG output low voltage
VOUT = 3.3 V, IPGL = 10 mA
0.04
0.4
V
PG output leakage current
0.01
0.1
mA
Output overvoltage protection
5.5
7
V
Overtemperature protection
140
°C
Overtemperature hysteresis
20
°C
Copyright © 2010, Texas Instruments Incorporated
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Product Folder Link(s): TPS63020 TPS63021


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