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TPS62698YFDR Datasheet(PDF) 3 Page - Texas Instruments

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Part # TPS62698YFDR
Description  800-mA , 3-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER
Download  31 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS62698YFDR Datasheet(HTML) 3 Page - Texas Instruments

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TPS62692, TPS62693
TPS62694, TPS62698
www.ti.com
SLVSAZ1 – DECEMBER 2012
THERMAL INFORMATION
TPS6269x
THERMAL METRIC(1)
UNITS
YFD (6 PINS)
θJA
Junction-to-ambient thermal resistance
132.5
θJCtop
Junction-to-case (top) thermal resistance
1.2
θJB
Junction-to-board thermal resistance
22.7
°C/W
ψJT
Junction-to-top characterization parameter
5.7
ψJB
Junction-to-board characterization parameter
22.4
θJCbot
Junction-to-case (bottom) thermal resistance
n/a
(1)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
_
RECOMMENDED OPERATING CONDITIONS
MIN
NOM
MAX
UNIT
VIN
Input voltage range
2.3
4.8(1)
V
IO
Output current range
0
800
mA
L
Inductance
0.5
1.8
µH
CO
Output capacitance
1
5
10
µF
TA
Ambient temperature
–40
85
°C
TJ
Operating junction temperature
–40
125
°C
(1)
Operation above 4.8V input voltage is not recommended over an extended period of time.
ELECTRICAL CHARACTERISTICS
Minimum and maximum values are at VIN = 2.3V to 5.5V, VOUT = 2.85V, EN = 1.8V, AUTO mode and TA = –40°C to 85°C;
Circuit of Parameter Measurement Information section (unless otherwise noted). Typical values are at VIN = 3.6V, VOUT =
2.85V, EN = 1.8V, AUTO mode and TA = 25°C (unless otherwise noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
IO = 0mA. Device not switching
21
50
μA
Operating quiescent
IQ
current
IO = 0mA, PWM mode
3.5
mA
I(SD)
Shutdown current
EN = GND
0.2
7
μA
Undervoltage lockout
UVLO
2.05
2.1
V
threshold
ENABLE, MODE
VIH
High-level input voltage
1
V
VIL
Low-level input voltage
0.4
V
Ilkg
Input leakage current
Input connected to GND or VIN
0.01
1.5
μA
POWER SWITCH
VIN = V(GS) = 3.6V. PWM mode
165
275
m
P-channel MOSFET on
rDS(on)
resistance
VIN = V(GS) = 2.9V. PWM mode
185
350
m
P-channel leakage
Ilkg
V(DS) = 5.5V, -40°C ≤ TJ ≤ 85°C
6
μA
current, PMOS
VIN = V(GS) = 3.6V. PWM mode
140
250
m
N-channel MOSFET on
rDS(on)
resistance
VIN = V(GS) = 2.9V. PWM mode
160
330
m
N-channel leakage
Ilkg
V(DS) = 5.5V, -40°C ≤ TJ ≤ 85°C
6
μA
current, NMOS
Discharge resistor for
rDIS
120
power-down sequence
2.3V
≤ VIN ≤ 4.8V. Open loop
1100
1250
1500
mA
P-MOS current limit
VIN = 3.6V. Closed loop
900
mA
Input current limit under
VO shorted to ground
15
mA
short-circuit conditions
Copyright © 2012, Texas Instruments Incorporated
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Product Folder Links: TPS62692 TPS62693 TPS62694 TPS62698


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