Datasheet

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TPS65050, TPS65051, TPS65052
TPS65054, TPS65056
SLVS710A – JANUARY 2007 – REVISED AUGUST 2007
ELECTRICAL CHARACTERISTICS (continued)
V
CC
= VINDCDC1/2 = 3.6 V, EN = V
CC
, MODE = GND, L = 2.2 μ H, C
O
= 10 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
OUTPUT
Output voltage range for DCDC1, externally adjustable VINDCDC
V
O
0.6 V
DCDC2 versions 1/2
externally adjustable
V
ref
Reference voltage 600 mV
versions
VINDCDC1/2 = 2.5 V to 6 V
0 mA < I
O
= < I
O
(max) -2% 0 2%
Mode = GND, PFM operation
DC output voltage DCDC1,
V
O
accuracy DCDC2
(1)
VINDCDC1/2 = 2.5 V to 6 V
0 mA < I
O
= < I
O
(max) -1% 0 1%
Mode = V
I
, PWM operation
I
O
= 1 mA, Mode = GND, V
O
= 1.3 V,
Δ V
O
Power save mode ripple voltage
(2)
25 mV
PP
Bandwith = 20 MHz
t
Start
Start-up time time from active EN to Start switching 170 μ s
t
Ramp
VOUT Ramp up Time time to ramp from 5% to 95% of V
O
750 μ s
RESET delay time Input voltage at threshold pin rising 80 100 120 ms
PB-ONOFF debounce time 26 32 38 ms
V
OL
RESET, PB_OUT output low voltage I
OL
= 1 mA, Vhysteresis < 1 V, Vthreshold < 1 V 0.2 V
I
OL
RESET, PB_OUT sink current 1 mA
RESET, PB_OUT output leakage After PB_IN has been pulled high once; Vthreshold >
10 nA
current 1 V and Vhysteresis > 1 V, V
OH
= 6 V
V
th
Vthreshold, Vhysteresis threshold 0.98 1 1.02 V
VLDO1, VLDO2, VLDO3 and VLDO4 Low Dropout Regulators
Input voltage range for LDO1, LDO2,
V
I
1.5 6.5 V
LDO3, LDO4
V
O
LDO1 output voltage range TPS65050, TPS65052 only 1.2 3.3 V
LDO2 output voltage range TPS65050, TPS65052 only 1.8 3.3 V
LDO3 output voltage range TPS65050, TPS65052 only 1.1 3.3 V
LDO4 output voltage range TPS65050, TPS65052 only 1.2 2.85 V
Feedback voltage for FB_LDO1,
V
(FB)
TPS65051, TPS65054 and TPS65056 only 1 V
FB_LDO2, FB_LDO3, and FB_LDO4
Maximum output current for LDO1,
I
O
400 mA
LDO2
Maximum output current for LDO3,
200 mA
LDO4
I
(SC)
LDO1 short-circuit current limit VLDO1 = GND 750 mA
LDO2 short-circuit current limit VLDO2 = GND 850 mA
LDO3 and LDO4 short-circuit current
VLDO3 = GND, VLDO4 = GND 420 mA
limit
Dropout voltage at LDO1 I
O
= 400 mA, VINLDO = 3.4 V 400 mV
Dropout voltage at LDO2 I
O
= 400 mA, VINLDO = 1.8 V 280 mV
Dropout voltage at LDO3, LDO4 I
O
= 200 mA, VINLDO = 1.8 V 280 mV
Leakage current from VinLDOx to LDO enabled, VINLDO = 6.5 V, V
O
= 1 V,
I
lkg
3 μ A
VLDOx at T
A
= 140 ° C
Output voltage accuracy for LDO1,
V
O
I
O
= 10 mA -2% 1%
LDO2, LDO3, LDO4
VINLDO1,2 = VLDO1,2 + 0.5 V (min. 2.5 V) to 6.5V,
Line regulation for LDO1, LDO2,
VINLDO3,4 = VLDO3,4 + 0.5 V (min. 2.5 V) to 6.5V, -1% 1%
LDO3, LDO4
I
O
= 10 mA
Load regulation for LDO1, LDO2, I
O
= 0 mA to 400 mA for LDO1, LDO2
-1% 1%
LDO3, LDO4 I
O
= 0 mA to 200 mA for LDO3, LDO4
Regulation time for LDO1, LDO2,
Load change from 10% to 90% 10 μ s
LDO3, LDO4
PSRR Power supply rejection ratio f = 10 kHz; I
O
= 50 mA; V
I
= V
O
+ 1 V 70 dB
(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
I
/ 32 Ω .
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