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TPS650243RHBTG4 Datasheet(PDF) 5 Page - Texas Instruments

No. de pieza TPS650243RHBTG4
Descripción Electrónicos  Power Management ICs for Li-Ion Powered Systems
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS650243RHBTG4 Datasheet(HTML) 5 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
TPS650240
,, TPS650241
TPS650242, TPS650243
TPS650244, TPS650245
SLVS774A – JUNE 2007 – REVISED DECEMBER 2007
VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6V, TA = –40°C to 85°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
VO = 3.3V
1000
mA
TPS650240, TPS650242 and
TPS650245
IO
Maximum output current for TPS650241
VO = 3.3V
1600
mA
and TPS650243
IO
Maximum output current for TPS650244
VO = 3.3V
800
mA
ISD
Shutdown supply current in VINDCDC1
EN_DCDC1 = GND
0.1
1
µA
RDS(ON)
P-channel MOSFET on-resistance
VINDCDC1 = VGS = 3.6V
125
261
m
ILP
P-channel leakage current
VINDCDC1 = 6.0V
2
µA
RDS(ON)
N-channel MOSFET on-resistance
VINDCDC1 = VGS = 3.6V
130
260
m
ILN
N-channel leakage current
VDS = 6.0V
7
10
µA
ILIMF
Forward current limit (P- and N-channel)
2.5V < VINMAIN < 6.0V
0.98
1.10
1.21
A
for TPS650244
ILIMF
Forward current limit (P- and N-channel)
2.5V < VINMAIN < 6.0V
1.15
1.30
1.39
A
for TPS650240, TPS650242 and
TPS650245
ILIMF
Forward current limit (P- and N-channel)
2.5V < VINMAIN < 6.0V
1.75
1.97
2.15
A
for TPS650241 and TPS650243
fS
Oscillator frequency
1.95
2.25
2.55
MHz
VDCDC1
Fixed output voltage
2.80V
VINDCDC1 = 3.3V to 6.0V;
–2%
2%
MODE=0 (PWM/PFM)
0 mA
≤ IO ≤ 1.6A
3.3V
–2%
2%
Fixed output voltage
2.80V
VINDCDC1 = 3.7V to 6.0V;
–1%
1%
MODE=1 (PWM)
0 mA
≤ IO ≤ 1.6A
3.3V
–1%
1%
Adjustable output voltage with resistor
VINDCDC1 = VDCDC1 +0.4V (min 2.5V)
–2%
2%
divider at DEFDCDC1 MODE = 0
to 6.0V; 0mA
≤ IO ≤ 1.6A
(PWM/PFM)
Adjustable output voltage with resistor
VINDCDC1 = VDCDC1 +0.4V (min 2.5V)
–1%
1%
divider at DEFDCDC1; MODE = 1
to 6.0V; 0mA
≤ IO ≤ 1.6A
(PWM)
Line regulation
VINDCDC1 = VDCDC1 + 0.3V (min. 2.5 V)
0.0
%/V
to 6.0V; IO = 10mA
Load regulation
IO = 10mA to 1.6A
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 © 2007, Texas Instruments Incorporated
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Product Folder Link(s): TPS650240 TPS650241 TPS650242 TPS650243 TPS650244 TPS650245


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