mc33702 Freescale Semiconductor, Inc, mc33702 Datasheet - Page 4

• Manufacturer Part Number: mc33702
• Description: 3.0 A Switch-mode Power Supply With Linear Regulator
• Manufacturer: Freescale Semiconductor, Inc

33702
4
PIN FUNCTION DESCRIPTION (continued)
Pin
23
26
27
28
29
30
31
32
Pin Name
CLKSYN
CLKSEL
RESET
ADDR
V
EN1
EN2
RT
DDI
Clock Synchronization
Formal Name
Clock Selection
Reset Overbar
Power Supply
Reset Timer
Enable 1
Enable 2
Address
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Internal supply voltage.
I
a 10 k
Enable 1 Input. The combination of the logic state of the Enable 1 and Enable 2 inputs
determine operation mode and type of power sequencing of the IC.
Enable 2 Input. The combination of the logic state of the Enable 1 and Enable 2 inputs
determine operation mode and type of power sequencing of the IC.
This pin allows programming the Power-ON Reset delay by means of an external RC
network.
The Reset Control circuit monitors both the switching regulator and the LDO feedback
voltages. It is an open drain output and has to be pulled up to some supply voltage (e.g.,
the output of the LDO) by an external resistor.
This pin sets the CLKSYN pin either as an oscillator output or synchronization input pin.
The CLKSEL pin is also used for the I
Oscillator output/synchronization input pin.
2
C address selection. This pin can be either left open, tied to V
resistor.
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
Definition
2
C address selection.
DDI
, or grounded through