Datasheet

TPS65053
TPS650531
TPS650532
SLVS754C – MARCH 2007 – REVISED SEPTEMBER 2009 ............................................................................................................................................. www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
V
cc
= VINDCDC1/2 = 3.6V, EN = V
cc
, MODE = GND, L = 2.2 µ H, C
OUT
= 22 µ F, T
A
= – 40 ° C to 85 ° C typical values
are at T
A
= 25 ° C (unless otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OSCILLATOR
f
SW
Oscillator frequency 2.025 2.25 2.475 MHz
OUTPUT
V
OUT
Output voltage range 0.6 V
IN
V
V
ref
Reference voltage 600 mV
V
IN
= 2.5 V to 6 V, Mode = GND,
-2% 0 2%
PFM operation, 0 mA < I
OUT
< I
OUTMAX
DC output voltage DCDC1,
V
OUT
accuracy DCDC2
(1)
V
IN
= 2.5 V to 6 V, Mode = V
IN
,
– 1% 0 1%
PWM operation, 0 mA < I
OUT
< I
OUTMAX
I
OUT
= 1 mA, Mode = GND, V
O
= 1.3 V,
Δ V
OUT
Power save mode ripple voltage
(2)
25 mV
PP
Bandwidth = 20 MHz
t
Start
Start-up time Time from active EN to Start switching 170 µ s
t
Ramp
V
OUT
Ramp up Time Time to ramp from 5% to 95% of V
OUT
750 µ s
RESET delay time Input voltage at threshold pin rising 80 100 120 ms
V
OL
RESET output low voltage I
OL
= 1 mA, Vthreshold < 1 V 0.2 V
RESET sink current 1 mA
RESET output leakage current Vthreshold > 1 V 10 nA
V
th
Threshold voltage falling voltage 0.98 1 1.02 V
VLDO1, VLDO2, VLDO3 LOW DROPOUT REGULATORS
Input voltage range for LDO1, LDO2,
V
INLDO
1.5 6.5 V
LDO3
V
LDO1
LDO1 output voltage range 1 3.6 V
V
LDO2
LDO2 output voltage range 1 3.6 V
LDO3 output voltage for TPS65053 1.3
V
LDO3
LDO3 output voltage for TPS650531 1.2 V
LDO3 output voltage for TPS650532 1.5
V
(FB)
Feedback voltage for FB_LDO1, FB_LDO2 1 V
Maximum output current for LDO1 400 mA
I
O
Maximum output current for LDO2, LDO3 200 mA
LDO1 short-circuit current limit V
LDO1
= GND 850 mA
I
(SC)
LDO2 & LDO3 short-circuit current limit V
LDO2
= GND, V
LDO3
= GND 420 mA
Dropout voltage at LDO1 I
O
= 400 mA, V
INLDO1
= 1.8 V 280 mV
Dropout voltage at LDO2, LDO3 I
O
= 200 mA, VINLDO2/3 = 1.8 V 280 mV
Output voltage accuracy for LDO1, LDO2,
I
O
= 10 mA – 2% 1%
LDO3
(1)
Line regulation for LDO1, LDO2, LDO3 V
INLDO1,2
= V
LDO1,2
+ 0.5 V (min. 2.5 V) to 6.5V, I
O
= 10 mA – 1% 1%
I
O
= 0 mA to 400 mA for LDO1
Load regulation for LDO1, LDO2, LDO3 – 1% 1%
I
O
= 0 mA to 200 mA for LDO2, LDO3
Regulation time for LDO1, LDO2, LDO3 Load change from 10% to 90% 25 µ s
Internal discharge resistor at VLDO1,
R
(DIS)
Active when LDO is disabled 350 Ω
VLDO2, VLDO3
Thermal shutdown Increasing junction temperature 140 ° C
Thermal shutdown hysteresis Decreasing junction temperature 20 ° C
(1) Output voltage specification does not include tolerance of external voltage programming resistors.
(2) In Power Save Mode, operation is typically entered at I
PSM
= V
IN
/ 32 Ω .
4 Submit Documentation Feedback Copyright © 2007 – 2009, Texas Instruments Incorporated
Product Folder Link(s): TPS65053 TPS650531 TPS650532