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TPS650244-Q1 Datasheet(PDF) 5 Page - Texas Instruments

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Part # TPS650244-Q1
Description  POWER MANAGEMENT ICs FOR Li-ION POWERED SYSTEMS
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS650244-Q1 Datasheet(HTML) 5 Page - Texas Instruments

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TPS650241-Q1, TPS650243-Q1, TPS650244-Q1
www.ti.com
SLVS994A
– SEPTEMBER 2009 – REVISED MARCH 2011
ELECTRICAL CHARACTERISTICS
VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6V, TJ = –40°C to 125°C, typical values are at TA = 25°C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDCDC1 STEP-DOWN CONVERTER
VVINDCDC1
Input voltage range
2.5
6.0
V
IO
Maximum output current for TPS65024X VO = 3.3 V
1600
mA
IO
Maximum output current for TPS650244
VO = 3.3 V
800
ISD
Shutdown supply current in VINDCDC1
EN_DCDC1 = GND
0.1
1
μA
RDS(ON)
P-channel MOSFET on-resistance
VINDCDC1 = VGS = 3.6 V
125
261
m
ILP
P-channel leakage current
VINDCDC1 = 6.0 V
2
μA
RDS(ON)
N-channel MOSFET on-resistance
VINDCDC1 = VGS = 3.6 V
130
260
m
ILN
N-channel leakage current
VDS = 6.0 V
7
10
μA
ILIMF
Forward current limit (P- and N-channel)
2.5V
< VINMAIN < 6.0 V
1.7
1.97
2.2
A
for TPS65024X
ILIMF
Forward current limit (P- and N-channel)
2.5V
< VINMAIN < 6.0 V
0.88
1.10
1.28
for TPS650244
fS
Oscillator frequency
1.95
2.25
2.55
MHz
VDCDC1
Fixed output voltage
2.80 V
VINDCDC1 = 3.3 V to 6.0 V;
–2%
2%
MODE = 0 (PWM/PFM)
0 mA
≤ IO ≤ 1.6A
3.3 V
–2%
2%
Fixed output voltage
2.80 V
VINDCDC1 = 3.7 V to 6.0 V;
–1%
1%
MODE = 1 (PWM)
0 mA
≤ IO ≤ 1.6 A
3.3 V
–1%
1%
Adjustable output voltage with resistor
VINDCDC1 = VDCDC1 + 0.4 V (min 2.5 V)
–2%
2%
divider at DEFDCDC1 MODE = 0
to 6.0 V; 0 mA
≤ IO ≤ 1.6 A
(PWM/PFM)
Adjustable output voltage with resistor
VINDCDC1 = VDCDC1 + 0.4 V (min 2.5 V)
–1%
1%
divider at DEFDCDC1; MODE = 1
to 6.0 V; 0 mA
≤ IO ≤ 1.6 A
(PWM)
Line regulation
VINDCDC1 = VDCDC1 + 0.3 V (min 2.5 V)
0.0
%/V
to 6.0 V; IO = 10 mA
Load regulation
IO = 10 mA to 1.6 A
0.25
%/A
tSS
Soft start ramp time
VDCDC1 ramping from 5% to 95% of
750
μs
target value
R(L1)
Internal resistance from L1 to GND
1
M
Copyright
© 2009–2011, Texas Instruments Incorporated
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Product Folder Link(s): TPS650241-Q1 TPS650243-Q1 TPS650244-Q1


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