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TPS650250RHBT Datasheet(PDF) 6 Page - Texas Instruments

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Part # TPS650250RHBT
Description  Power Management IC for Li-Ion Powered Systems
Download  35 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS650250RHBT Datasheet(HTML) 6 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
TPS650250
SLVS843 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com
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
VDCDC2 STEP-DOWN CONVERTER
VI
Input voltage range, VINDCDC2
2.5
6
V
IO
Maximum output current
VO = 2.5V
800
mA
ISD
Shutdown supply current in VINDCDC2
EN_DCDC2 = GND
0.1
1
µA
RDS(on)
P-channel MOSFET on-resistance
VINDCDC2 = VGS = 3.6V
140
300
m
ILP
P-channel leakage current
VINDCDC2 = 6.0V
2
µA
RDS(on)
N-channel MOSFET on-resistance
VINDCDC2 = VGS = 3.6V
150
297
m
ILN
N-channel leakage current
VDS = 6V
7
10
µA
ILIMF
Forward current limit (P- and N-channel)
2.5V < VINDCDC2 < 6V
1.05
1.16
1.29
A
fS
Oscillator frequency
1.95
2.25
2.55
MHz
1.8V
VINDCDC2 = 2.5V to 6V; 0 mA
≤ IO ≤ 1.6A
–2%
2%
Fixed output voltage
MODE = 0 (PWM/PFM)
2.5V
VINDCDC2 = 3V to 6V; 0 mA
≤ IO ≤ 1.6A
–2%
2%
1.8V
VINDCDC2 = 2.5V to 6V; 0 mA
≤ IO ≤ 1.6A
–2%
2%
Fixed output voltage
MODE = 1 (PWM)
2.5V
VINDCDC2 = 3V to 6V; 0 mA
≤ IO ≤ 1.6A
–1%
1%
VDCDC2
Adjustable output voltage with resistor
VINDCDC2 = VDCDC2 + 0.5V (min 2.5V)
divider at DEFDCDC2 MODE = 0
–2%
2%
to 6V; 0mA
≤ IO ≤ 1.6A
(PWM)
Adjustable output voltage with resistor
VINDCDC2 = VDCDC2 + 0.5V (min 2.5V)
divider at DEFDCDC2; MODE = 1
–1%
1%
to 6V; 0mA
≤ IO ≤ 1.6A
(PWM)
VINDCDC2 = VDCDC2 + 0.3 V (min. 2.5
Line regulation
0.0
%/V
V) to 6V; IO = 10mA
Load regulation
IO = 10mA to 1.6A
0.25
%/A
VDCDC2 ramping from 5% to 95% of
tSS
Soft start ramp time
750
µs
target value
R(L2)
Internal resistance from L2 to GND
1
M
6
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Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS650250


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