Datasheet

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ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
TPS61090
TPS61091, TPS61092
SLVS484A – JUNE 2003 – REVISED APRIL 2004
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
AVAILABLE OUTPUT VOLTAGE OPTIONS
(1)
OUTPUT VOLTAGE
T
A
PACKAGE Part Number
(2)
DC/DC
Adjustable 16-Pin QFN 4x4mm TPS61090RSA
40°C to 85°C 3.3 V 16-Pin QFN 4x4mm TPS61091RSA
5 V 16-Pin QFN 4x4mm TPS61092RSA
(1) Contact the factory to check availability of other fixed output voltage versions.
(2) The RSA package is available taped and reeled. Add R suffix to device type (e.g., TPS61090RSAR) to order quantities of 3000 devices
per reel.
over operating free-air temperature range (unless otherwise noted)
(1)
TPS6109x
Input voltage range on LBI -0.3 V to 3.6 V
Input voltage range on SW, VOUT, LBO, VBAT, SYNC, EN, FB -0.3 V to 7 V
Operating free air temperature range T
A
-40°C to 85°C
Maximum junction temperature T
J
150°C
Storage temperature range T
stg
-65°C to 150°C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
MIN NOM MAX UNIT
Supply voltage at VBAT, V
I
1.8 5.5 V
Inductance, L 2.2 6.8 µH
Input, capacitance, C
i
10 µF
Output capacitance, C
o
22 100 µF
Operating free air temperature, T
A
-40 85 °C
Operating virtual junction temperature, T
J
-40 125 °C
over recommended free-air temperature range and over recommended input voltage range (typical values are at an ambient
temperature range of 25°C) (unless otherwise noted)
DC/DC STAGE
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
I
Input voltage range 1.8 5.5 V
V
O
TPS61090 output voltage range 1.8 5.5 V
V
FB
TPS61090 feedback voltage 490 500 510 mV
f Oscillator frequency 500 600 700 kHz
Frequency range for synchronization 500 700 kHz
I
SW
Switch current limit VOUT= 5 V 2000 2200 2500 mA
Start-up current limit 0.4 x I
SW
mA
Boost switch on resistance VOUT= 5 V 55 mΩ
Rectifying switch on resistance VOUT= 5 V 55 mΩ
Total accuracy -3% 3%
Line regulation 0.6%
2