Datasheet

TPS54262-Q1
www.ti.com SLVS996C –SEPTEMBER 2009–REVISED JUNE 2010
RECOMMENDED OPERATING CONDITIONS
MIN MAX UNIT
V
I
Unregulated buck supply input voltage (VIN, EN) 3.6 48 V
In continuous conduction mode (CCM) 0.9 18 V
V
Reg
Regulated output voltage
Power up in low-power mode (LPM) or discontinuous conduction
0.9 5.5 V
mode (DCM)
Bootstrap capacitor (BOOT) 3.6 56 V
Switched outputs (PH) 3.6 48 V
Logic levels (RST, VSENSE, OV_TH, RST_TH, Rslew, SYNC, RT) 0 5.25 V
Logic levels (SS, Cdly, COMP) 0 6.5 V
q
JA
Thermal resistance, junction to ambient
(1)
35 °C/W
q
JC
Thermal resistance, junction to case
(2)
10 °C/W
T
J
Operating junction temperature
(3)
–40 150 °C
(1) This assumes a JEDEC JESD 51-5 standard board with thermal vias with High K profile – See PowerPAD section and application note
from Texas Instruments (SLMA002) for more information.
(2) This assumes junction to exposed thermal pad.
(3) This assumes T
A
= T
J
– power dissipation × q
JA
.
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