Datasheet

TPS65720
TPS65721
SLVS979 –OCTOBER 2009 www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ORDERING INFORMATION
PACKAGE
T
A
PART NUMBER
(1)
SIZE FOR WCSP VERSION PACKAGE CODE PACKAGE
MARKING
-40°C TO 85°C TPS65720 D = 2105 μm ±25 μm YFF WCSP TPS65720
E = 2105 μm ±25 μm
-40°C TO 85°C TPS65721 RSN QFN
(1)
65720
(1) The RSN and YFF package is available in tape and reel. Add R suffix (TPS65720YFFR; TPS65721RSNR) to order quantities of 3000
parts per reel. Add T suffix (TPS65720YFFT; TPS65721RSNT) to order quantities of 250 parts per reel.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)
VALUE / UNIT
Input voltage range on all pins except A/PGND, AC, GPIOx pins with respect to AGND –0.3 to 7 V
Input voltage range on GPIOx pins with respect to AGND –0.3 to VSYS
Input voltage range on AC pin with respect to AGND –0.3 to 28 V
Voltage range on pin VLDO1, FB_LDO1, TS_OUT, TS with respect to AGND –0.3 to 3.6 V
Current at AC, BAT, SYS, L1, VLDO1, VINLDO1, PGND 600 mA
Current at GPIOx, AGND 20 mA
Current at all other pins 3 mA
Continuous total power dissipation See dissipation rating table
Operating free-air temperature, T
A
–40°C to 85°C
Maximum junction temperature, T
J
125°C
Storage temperature, T
ST
–65°C to 150°C
DISSIPATION RATINGS
(1)
PACKAGE R
θJA
T
A
≤ 25°C DERATING FACTOR T
A
= 70°C T
A
= 85°C
POWER RATING ABOVE T
A
= 25°C POWER RATING POWER RATING
YFF 55 K/W 1.8 W 18 mW/K 1 W 0.7 W
RSN 38 K/W 2.6 W 26 mW/K 1.4 W 1 W
(1) The thermal resistance was measured on a high K board.
RECOMMENDED OPERATING CONDITIONS
MIN NOM MAX UNIT
V
AC
Input voltage range at AC pin 4.35 28 V
V
SYS
Voltage range at SYS pin 2.2 5.6 V
I
INUSB
Input current at AC 500 mA
I
OUTSYS
Output current at SYS 400 mA
I
BAT
Average current into / out of BAT pin 300 mA
V
INDCDC1
Input voltage range for step-down converter DCDC1 2.3 5.6 V
V
DCDC1
Output voltage range for DCDC1 step-down converter; externally adjustable 0.6 V
INDCDC1
V
I
OUTDCDC1
Output current at L 400 mA
L Inductor at L
(1)
2.2 3.3 4.7 μH
V
INLDO1
Input voltage range for LDO1 1.8 VSYS V
V
LDO1
Output voltage range for LDO1 0.8 3.3 V
I
LDO1
Output current at LDO1 200 mA
(1) See application section for more details
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Product Folder Link(s): TPS65720 TPS65721