PIN CONNECTIONS
Table 1. 34716 Pin Definitions (continued)
A functional description of each pin can be found in the Functional Pin Description section beginning on page 12 .
Pin Number
14
Pin Name
VOUT2
Pin Function
Output
Formal Name
Output Voltage
Definition
Channel 2 Buck converter output voltage discharge pin
Discharge Path
15
16
17
18
19
PGND2
SW2
PVIN2
BOOT2
ILIM1
Ground
Output
Power
Input
Input
Power Ground
Switching Node
Power Input Voltage
Bootstrap Input
Soft Start Adjustment
Channel 2 Buck converter and discharge MOSFETs power ground
Channel 2 Buck converter switching node
Channel 2 Buck converter power input
Channel 2 Bootstrap capacitor input pin
Channel 1 soft start adjustment
Input
20
21
NC
FREQ
None
Input
No Connect
Frequency Adjustment
No internal connections to this pin
The buck converters switching frequency adjustment input
Input
22,23
24
25
VIN
GND
VDDI
Power
Ground
Output
Input Supply Voltage
Signal Ground
Internal Supply
Power supply voltage of the IC
Analog ground of the IC
Internal supply voltage output
Voltage
26
27
STBY
GND
Input
Ground
Standby Input
Thermal Pad
Standby mode input control pin
Thermal pad for heat transfer. Connect the thermal pad to the analog
ground and the ground plane for heat sinking.
34716
Analog Integrated Circuit Device Data ?
4
Freescale Semiconductor
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