Datasheet

TPS7A6533-Q1
TPS7A6550-Q1
www.ti.com SLVSA98C –MAY 2010–REVISED JULY 2012
ELECTRICAL CHARACTERISTICS
V
IN
= 14V, T
J
= –40ºC to 150ºC (unless otherwise noted)
NO. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
4. Input Voltage (VIN pin)
Fixed 5-V output, I
OUT
= 1 mA 5.3 40
4.1 V
IN
Input voltage V
Fixed 3.3-V output, I
OUT
= 1 mA 3.6 40
4.2 I
QUIESCENT
Quiescent current V
IN
= 8.2 V to 18 V, I
OUT
= 0.01 mA to 0.75 mA 25 40 µA
Undervoltage lockout
4.3 V
IN-UVLO
Ramp V
IN
down until output is turned OFF 3.16 V
voltage
4.4 V
IN(POWERUP)
Power-up voltage Ramp V
IN
up until output is turned ON 3.45 V
5. Regulated Output Voltage (VOUT pin)
Fixed V
OUT
value (3.3 V or 5 V as applicable),
5.1 V
OUT
Regulated output voltage I
OUT
= 10 mA, 10 mA to 300 mA, –2% 2%
V
IN
= V
OUT
+ 1 V to 16 V
V
IN
= 6 V to 28 V, I
OUT
= 10 mA, V
OUT
= 5 V 15 mV
5.2 ∆V
LINE-REG
Line regulation
V
IN
= 6 V to 28 V, I
OUT
= 10 mA, V
OUT
= 3.3 V 20 mV
I
OUT
= 10 mA to 300 mA, V
IN
= 14 V, V
OUT
= 5 V 25 mV
5.3 ∆V
LOAD-REG
Load regulation
I
OUT
= 10 mA to 300 mA,V
IN
= 14 V, V
OUT
= 3.3 V 35 mV
I
OUT
= 250 mA 500 mV
Dropout voltage
5.4 V
DROPOUT
(1)
(V
IN
– V
OUT
)
I
OUT
= 150 mA 300 mV
5.5 R
SW
(2)
Switch resistance VIN to VOUT resistance 2 Ω
5.6 I
OUT
Output current V
OUT
in regulation 0 300 mA
5.7 I
CL
Output current limit V
OUT
= 0 V (VOUT pin is shorted to ground) 350 1000 mA
V
IN-RIPPLE
= 0.5 Vpp, I
OUT
= 300 mA,
frequency = 100 Hz, V
OUT
= 5 V, and 60
V
OUT
= 3.3 V
Power-supply ripple
5.8 PSRR
(2)
dB
rejection
V
IN-RIPPLE
= 0.5 Vpp, I
OUT
= 300 mA,
frequency = 150 kHz, V
OUT
= 5 V, and 30
V
OUT
= 3.3 V
6. Operating Temperature Range
Operating junction
6.1 T
J
-40 150 ºC
temperature
Thermal shutdown trip
6.2 T
SHUTDOWN
165 ºC
point
Thermal shutdown
6.3 T
HYST
10 ºC
hysteresis
(1) This test is done with V
OUT
in regulation and V
IN
– V
OUT
parameter is measured when V
OUT
(3.3 V or 5 V) drops by 100 mV at specified
loads.
(2) Specified by design – not tested
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