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TPS652510 View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
TPS652510 4.5-V TO 16-V INPUT, HIGH CURRENT, SYNCHRONOUS STEP DOWN THREE DC-DC CONVERTERS WITH INTEGRATED FET TI
Texas Instruments TI
TPS652510 Datasheet PDF : 31 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
TPS652510
SLVSB30B – SEPTEMBER 2011 – REVISED AUGUST 2013
www.ti.com
UC
LX3
VIN3
NAME
BST3
EN3
PowerPAD
NO.
35
36, 37
38
39
40
TERMINAL FUNCTIONS (continued)
I/O
DESCRIPTION
Unused pin, connect to ground
O
Switching node for Buck3
I
Input supply for Buck3. Fit a 10-µF ceramic capacitor close to this pin.
I
Bootstrap capacitor for Buck3. Fit a 47-nF ceramic capacitor from this pin
to the switching node.
I
Enable pin for Buck3. A high signal on this pin enables the converter. For
a delayed start-up add a small ceramic capacitor from this pin to ground.
PowerPAD. Connect to system ground for electrical and thermal
connection.
ABSOLUTE MAXIMUM RATINGS (1)
over operating free-air temperature range (unless otherwise noted, all voltages are with respect to GND)
Voltage range at VIN1,VIN2, VIN3, LX1, LX2, LX3
–0.3 to 18
V
Voltage range at LX1, LX2, LX3 (maximum withstand voltage transient < 10 ns)
–3 to 18
V
Voltage at BST1, BST2, BST3 referenced to LX pin
–0.3 to 7
V
Voltage at V7V, COMP1, COMP2, COMP3
–0.3 to 7
V
Voltage at V3V, RLIM1, RLIM2, RLIM3, EN1, EN2, EN3, SS1, SS2, SS3, FB1, FB2, FB3,
F_PWM, PGOOD, ROSC
–0.3 to 3.6
V
TJ
TSTG
Operating junction temperature range
Storage temperature range
–40 to 125
°C
–55 to 150
°C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute–maximum–rated conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
VIN
Input operating voltage
TA
Junction temperature
MIN NOM MAX UNIT
4.5
16
V
–40
85
°C
ELECTROSTATIC DISCHARGE (ESD) PROTECTION
Human body model (HBM)
Charge device model (CDM)
MIN
2000
500
MAX
UNIT
V
V
PACKAGE DISSIPATION RATINGS(1)
PACKAGE
θJA (°C/W)
TA = 25°C
POWER RATING (W)
RHA
30
3.33
TA = 55°C
POWER RATING (W)
2.3
TA = 85°C
POWER RATING (W)
1.3
(1) Based on JEDEC 51.5 HIGH K environment measured on a 76.2 x 114 x 0.6-mm board with the following layer arrangement:
(a) Top layer: 2 Oz Cu, 6.7% coverage
(b) Layer 2: 1 Oz Cu, 90% coverage
(c) Layer 3: 1 Oz Cu, 90% coverage
(d) Bottom layer: 2 Oz Cu, 20% coverage
6
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