TPS65050, TPS65051, TPS65052TPS65054, 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 μH, C
O
= 10 μF. T
A
= -40 °C to 85 °C, typical values are atT
A
= 25 °C (unless otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OUTPUT
Output voltage range for DCDC1, externally adjustable VINDCDCV
O
0.6 VDCDC2 versions 1/2
externally adjustableV
ref
Reference voltage 600 mVversions
VINDCDC1/2 = 2.5 V to 6 V0 mA < I
O
=<I
O
(max) -2% 0 2%Mode = GND, PFM operationDC output voltage DCDC1,V
O
accuracy DCDC2
(1)
VINDCDC1/2 = 2.5 V to 6 V0 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,ΔV
O
Power save mode ripple voltage
(2)
25 mV
PPBandwith = 20 MHz
t
Start
Start-up time time from active EN to Start switching 170 μs
t
Ramp
VOUT Ramp up Time time to ramp from 5% to 95% of V
O
750 μs
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 nAcurrent 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 VLDO3, 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 VFB_LDO2, FB_LDO3, and FB_LDO4
Maximum output current for LDO1,I
O
400 mALDO2
Maximum output current for LDO3,
200 mALDO4
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 mAlimit
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
3μAVLDOx 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 μsLDO3, 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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