Datasheet

TPS65950
SWCS032E–OCTOBER 2008–REVISED JANUARY 2011 www.ti.com
4.1.14 Internal LDOs
Table 4-16 lists the regulators that power the device, and the output loads associated with them.
Table 4-16. Output Load Conditions
Regulator Parameter Test Conditions Min Typ Max Unit
VINTDIG LDO Filtering capacitor Connected from VINTDIG.OUT to analog 0.3 1 2.7 μF
ground
Filtering capacitor ESR 20 600 mΩ
VINTANA1 LDO Filtering capacitor Connected from VINTANA1.OUT to analog 0.3 1 2.7 μF
ground
Filtering capacitor ESR 20 600 mΩ
VINTANA2 LDO Filtering capacitor Connected from VINTANA2.OUT to analog 0.3 1 2.7 μF
ground
Filtering capacitor ESR 20 600 mΩ
VRUSB_3V1 LDO Filtering capacitor Connected from VUSB.3P1 to GND 0.3 1 2.7 μF
Filtering capacitor ESR 0 10 600 mΩ
VRUSB_1V8 LDO Filtering capacitor Connected from VINTUSB1P8.OUT to GND 0.3 1 2.7 μF
Filtering capacitor ESR 0 10 600 mΩ
VRUSB_1V5 LDO Filtering capacitor Connected from VINTUSB1P5 to GND 0.3 1 2.7 μF
Filtering capacitor ESR 0 10 600 mΩ
4.1.15 CP
The CP generates a 4.8-V (nominal) power supply voltage from the battery to the VBUS pin. The input
voltage range is 2.7 to 4.5 V for the battery voltage. The CP operating frequency is 1 MHz.
The CP tolerates 7 V on VBUS when it is in power-down mode. The CP integrates a short-circuit current
limitation at 450 mA. Table 4-17 lists the characteristics of the CP.
Table 4-17. CP Characteristics
Parameter Test Conditions Min Typ Max Unit
Output Load Conditions
Filtering capacitor Connected from VBUS to VSSP 1.41 4.7 6.5 μF
Flying capacitor Connected from CP to CN 1.32 2.2 3.08 μF
Filtering capacitor ESR 20 mΩ
Electrical Characteristics
V
IN
Input voltage On mode: V
IN
= VBAT 2.7 3.6 4.5 V
V
O
Output voltage 4.6 4.8 5.25 V
VBAT > 3 V at VBUS 0 100
I
load
Rated output current mA
2.7 V < VBAT < 3 V, at VBUS 0 50
Efficiency I
Load
= 100 mA, VBAT = 3.6 V 55%
Setting time I
LOADmax/2
to I
LOAmax
in 5 μs 100 400 μs
Startup time 3 ms
Short-circuit limitation current 250 350 450 mA
dc load regulation I
LOADmin
to I
LOADmax
250 500 mV
3.0 V to VBAT
max
dc line regulation 250 350 mV
I
Load
= 100 mA
I
VBUS_5Vmax/2
– I
VBUS_5Vmax
300 350
50 μs, C = 2*4.7 μF
Transient load regulation mV
0 – I
VBUS_5Vmax/2
, 50 μs, C = 2*4.7 μF 350
Transient line regulation VBAT
min
to VBAT
max
in 50 μs, C = 2*4.7 μF 300 350 mV
54 Power Module Copyright © 2008–2011, Texas Instruments Incorporated
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