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TPS62353YZGR Fiches technique(PDF) 3 Page - Texas Instruments

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No de pièce TPS62353YZGR
Description  800-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER WITH I2C??COMPATIBLE INTERFACE IN CHIP SCALE PACKAGING
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

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DISSIPATION RATINGS
(1)
ELECTRICAL CHARACTERISTICS
TPS62350, TPS62351
TPS62352, TPS62353, TPS62354
SLVS540B – MAY 2006 – REVISED DECEMBER 2006
POWER RATING
DERATING FACTOR
PACKAGE
RθJA
(2)
FOR TA ≤ 25°C
ABOVE TA = 25°C
DRC
49
°C/W
2050 mW
21 mW/
°C
YZG
110
°C/W
900 mW
9 mW/
°C
(1)
Maximum power dissipation is a function of TJ(max), θJA and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = [TJ(max) – TA] / θJA.
(2)
This thermal data is measured with high-K board (4 layers board according to JESD51-7 JEDEC standard).
over operating free-air temperature range, typical values are at T
A = 25°C. Unless otherwise noted, specifications apply with
V
I = 3.6 V, EN = VI, VSEL = VI, SYNC = GND, VSEL0[6] bit = 1.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
IO = 0 mA, Fast PFM mode enabled
110
150
µA
Device not switching
IQ
Operating quiescent current
IO = 0 mA, Light PFM mode enabled
28
45
µA
Device not switching
IO = 0 mA, 3-MHz PWM mode operation
4.8
mA
EN = GND, EN_DCDC bit = X
0.1
2
µA
I(SD)
Shutdown current
EN = VI, EN_DCDC bit = 0
6.5
µA
V(UVLO)
Undervoltage lockout threshold
2.20
2.3
V
ENABLE, VSEL, SDA, SCL, SYNC
VIH
High-level input voltage
1.2
V
VIL
Low-level input voltage
0.4
V
Ilkg
Input leakage current
Input tied to GND or VI
0.01
1
µA
POWER SWITCH
VI = V(GS) = 3.6 V, YZG package
250
500
rDS(on)
P-channel MOSFET on resistance
VI = V(GS) = 3.6 V, DRC package
275
500
m
VI = V(GS) = 2.7 V, DRC package
350
750
Ilkg
P-channel leakage current
V(DS) = 6 V
1
µA
VI = V(GS) = 3.6 V, YZG package
150
350
rDS(on)
N-channel MOSFET on resistance
VI = V(GS) = 3.6 V, DRC package
165
350
m
VI = V(GS) = 2.7 V, DRC package
210
500
Ilkg
N-channel leakage current
V(DS) = 6 V
1
µA
R(DIS)
Discharge resistor for power-down sequence
15
50
P-MOS current limit
2.7 V
≤ V
I ≤ 5.5 V
1150
1350
1600
mA
Sourcing
2.7 V
≤ V
I ≤ 5.5 V
900
1100
1300
mA
N-MOS current limit
Sinking
2.7 V
≤ V
I ≤ 5.5 V
-500
-700
-900
mA
Input current limit under short-circuit conditions
VO = 0 V
675
mA
Thermal shutdown
150
°C
Thermal shutdown hysteresis
20
°C
OSCILLATOR
fSW
Oscillator frequency
CONTROL2[4:3] = 00
2.65
3
3.35
MHz
f(SYNC)
Synchronization range
2.65
3.35
MHz
Duty cycle of external clock signal
20%
80%
3
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