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TPS54352PWPR Datasheet(PDF) 4 Page - Texas Instruments

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Part # TPS54352PWPR
Description  4.5-V TO 20-V INPUT, 3-A OUTPUT SYNCHRONOUS PWM
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS54352PWPR Datasheet(HTML) 4 Page - Texas Instruments

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TPS54352,TPS54353
TPS54354,TPS54355
TPS54356,TPS54357
SLVS519A − MAY 2004 − REVISED OCTOBER 2004
www.ti.com
4
ELECTRICAL CHARACTERISTICS
TJ = –40°C to 125°C, VIN = 4.5 V to 20 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
IQ
Quiescent current
Operating current, PH pin open,
No external low side MOSFET, RT = Hi-Z
5
mA
IQ
Quiescent current
Shutdown, ENA = 0 V
1
mA
Start threshold voltage
TPS54352−6
4.32
4.49
V
Start threshold voltage
TPS54357
6.4
6.65
V
VIN
Stop threshold voltage
TPS54352−6
3.69
3.97
V
VIN
Stop threshold voltage
TPS54357
5.45
5.80
V
Hysteresis
TPS54352−6
350
mV
Hysteresis
TPS54357
600
mV
OUTPUT VOLTAGE
TPS54352
TJ = 25°C, IO = 100 mA to 3 A
1.88
1.2
1.212
TPS54352
IO = 100 mA to 3 A
1.176
1.2
1.224
TPS54353
TJ = 25°C, IO = 100 mA to 3 A
1.485
1.5
1.515
TPS54353
IO = 100 mA to 3 A
1.47
1.5
1.53
TPS54354
TJ = 25°C, IO = 100 mA to 3 A
1.782
1.8
1.818
VO
Output voltage
TPS54354
IO = 100 mA to 3 A
1.764
1.8
1.836
V
VO
Output voltage
TPS54355
TJ = 25°C, IO = 100 mA to 3 A
2.475
2.5
2.525
V
TPS54355
IO = 100 mA to 3 A
2.45
2.5
2.55
TPS54356
TJ = 25°C, VIN = 5.5 V to 20 V, IO = 100 mA to 3 A
3.267
3.3
3.333
TPS54356
VIN = 5.5 V to 20 V, IO = 100 mA to 3 A
3.234
3.3
3.366
TPS54357
TJ = 25°C, VIN = 7.5 V to 20 V, IO = 100 mA to 3 A
4.95
5.0
5.05
TPS54357
VIN = 7.5 V to 20 V, IO = 100 mA to 3 A
4.90
5.0
5.10
UNDER VOLTAGE LOCK OUT (UVLO PIN)
Start threshold voltage
1.20
1.24
V
UVLO
Stop threshold voltage
1.02
1.10
V
UVLO
Hysteresis
100
mV
BIAS VOLTAGE (VBIAS PIN)
VBIAS
Output voltage
IVBIAS = 1 mA, VIN ≥ 12 V
7.5
7.8
8.0
V
VBIAS
Output voltage
IVBIAS = 1 mA, VIN = 4.5 V
4.4
4.47
4.5
V
OSCILLATOR (RT PIN)
Internally set PWM switching frequency
RT Grounded
200
250
300
kHz
Internally set PWM switching frequency
RT Open
400
500
600
kHz
Externally set PWM switching frequency
RT = 100 k
Ω (1% resistor to AGND)
425
500
575
kHz


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