LM10503 Datasheet, PDF (7/43 Pages) Texas Instruments – LM10503 Triple Buck Converter Energy Management Unit (EMU) with PowerWise® 2.0 Adaptive Voltage Scaling (AVS) and ADC

Absolute Maximum Ratings (Note 1, Note Recommended Operating Ratings
2, Note 3, Note 4, Note 5)
If Military/Aerospace specified devices are required,
please contact the Texas Instruments Sales Office/
Distributors for availability and specifications.
Any supply pin (VIN) to GND, Note
3.
-0.3 to +6.5V
Any signal pin, VPWI, VDDMFP
-0.3 to +(VIN
+0.3V) but not over
6.5V
Between any GND pins (Note 4)
-0.3 to +0.3V
Junction Temperature (T_J-MAX)
Storage Temperature Range
+150°C
-65°C to +150°C
Maximum Lead Temperature
(Soldering 4 sec)
+260°C
ESD Ratings (Note 7)
Human Body Model
Machine Model
2000V
200V
(Note 2, Note 3, Note 4, Note 5)
VIN
3.0V to 5.5V
VPWI (Note 6)
1.62V to 3.63V but not over
VIN
VDDMFP (Note 6)
1.62V to VIN
VFB1,2,3
0 to VOUT1,2,3
EN
0 to VIN
MFP0-3
0 to VDDMFP
SPWI, SCLK, SA0-1, POR, IRQ
0 to VPWI
Junction Temperature (T_J)
Range
Ambient Temperature (T_A)
Range (Note 8, Note 9, Note 10,
Note 11)
Maximum Continuous Power
Dissipation (P_D-MAX) (Note 8,
Note 9, Note 10, Note 11)
-40°C to +105°C
-40°C to +70°C
1.33W
Thermal Properties
(Note 8, Note 9, Note 10, Note 11)
Junction-to-Case Thermal Resistance
(θ_JC)
Junction-to-Board Thermal Resistance
(θ_JA)
Junction-to-Ambient Thermal
Resistance (θ_JA)
2.2°C/W
12.4°C/W
27.0°C/W
General Electrical Characteristics (Note 2, Note 3)
Unless otherwise noted, V_IN= 5.0V where: V_IN=AVDD=VDDL=VDDADC=DVDD=VDDMFP=PVIN1A=PVIN1B=PVIN2=PVIN3, ex-
cept VPWI=2.5V. The application circuit used is the one shown in Figure 3. Limits in standard type apply for T_J = 25°C. Limits
appearing in boldface type apply over the full operating junction temperature range −40°C ≤ T_J≤ +105°C.
Symbol
Parameter
Conditions
Min
TYP
Max
Units
I_Q-VIN-SD
Quiescent supply current of Device is shut down by:
all VIN supply pins
a) driving EN pin low or
combined; part is shut down b) issuing the Shutdown Command
2
20
µA
I_{Q-VIN-NO-LOAD}
Quiescent supply current of
all VIN supply pins
combined; part is enabled,
but not loaded
Switching in forced PWM, ADC
disabled, MFP pins set as inputs, driven
LOW
16
25
mA
I_Q-VPWI-SD
I_Q-VPWI-IDLE
Quiescent supply current of Device is shut down by:
VPWI supply pin; part is shut a) driving EN pin low or
down
b) issuing the Shutdown Command
Quiescent supply current of Device is enabled, PWI bus is idle (no
VPWI supply pin; part is
load on SPWI, SCLK)
enabled, PWI bus is idle
0.1
1
µA
0.1
1
F_SW
Switching Frequency of all 3 PWM-mode measured at SW1, 2, 3
1.75
2.00
2.30
MHz
bucks
pins, 120° out of phase (by design)
T_POR-DELAY
Delay from EN-pin rising All 3 bucks are unloaded
edge to POR-pin rising edge
53
ms
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