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TPS650250-Q1 Datasheet(PDF) 8 Page - Texas Instruments

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No. de Pieza. TPS650250-Q1
Descripción  POWER MANAGEMENT IC FOR LI-ION POWERED SYSTEMS
Descarga  32 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS650250-Q1 Datasheet(HTML) 8 Page - Texas Instruments

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TPS650250-Q1
SLVSAA7 – MARCH 2010
www.ti.com
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
VDCDC3 STEP-DOWN CONVERTER
VI
Input voltage range, VINDCDC3
2.5
6.0
V
IO
Maximum output current
VO = 1.6V
800
mA
Shutdown supply current in
ISD
EN_DCDC3 = GND
0.1
1
mA
VINDCDC3
RDS(on)
P-channel MOSFET on-resistance
VINDCDC3 = VGS = 3.6V
310
698
m
ILP
P-channel leakage current
VINDCDC3 = 6V
0.1
2
mA
RDS(on)
N-channel MOSFET on-resistance
VINDCDC3 = VGS = 3.6V
220
503
m
ILN
N-channel leakage current
VDS = 6.0V
7
10
mA
Forward current limit (P- and
ILIMF
2.5V < VINDCDC3 < 6V
1.00
1.20
1.40
A
N-channel)
fS
Oscillator frequency
1.95
2.25
2.55
MHz
Adjustable output voltage with
VINDCDC3 = VDCDC3 + 0.5V (min 2.5V) to 6V;
resistor divider at DEFDCDC2
0mA
≤ IO ≤ 0.8A
–2%
2%
MODE = 0 (PWM)
VDCDC3
Adjustable output voltage with
VINDCDC3 = VDCDC3 + 0.5V (min 2.5V) to 6V;
resistor divider at DEFDCDC2;
0mA
≤ IO ≤ 0.8A
–1%
1%
MODE = 1 (PWM)
VINDCDC3 = VDCDC3 + 0.3V (min. 2.5 V) to
Line regulation
0.0
%/V
6V; IO = 10mA
Load regulation
IO = 10mA to 600mA
0.25
%/A
VDCDC3 ramping from 5% to 95% of target
tSS
Soft start ramp time
750
ms
value
R(L3)
Internal resistance from L3 to GND
1
M
8
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Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS650250-Q1


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