ADP3207 ANALOG DEVICES, ADP3207 Datasheet - Page 9

• Manufacturer Part Number: ADP3207
• Description: 7-Bit Programmable Multiphase Mobile CPU Synchronous Buck Controller
• Manufacturer: ANALOG DEVICES

Pin No.
24 to 26
27
28
29
30
31
32
33
34 to 40
Mnemonic
PWM3 to
PWM1
OD
DCM
VRTT
TTSENSE
VCC
PSI
DPRSTP
VID6 to
VID0
Description
Logic-Level PWM Outputs. Each output is connected to the input of an external MOSFET driver such as the
ADP3419. Connecting the PWM2 and/or PWM3 outputs to VCC causes that phase to turn off, allowing the
ADP3207 to operate as a 1-, 2-, or 3-phase controller.
Multiphase Output Disable Logic Output. This pin is actively pulled low when the ADP3207 enters single-phase mode
or during shutdown. Connect this pin to the SD inputs of the Phase-2 and Phase-3 MOSFET drivers.
Discontinuous Current Mode Enable Output. This pin is actively pulled low when the single-phase inductor
current crosses zero.
Voltage Regulator Thermal Throttling Logic Output. This pin goes high if the temperature at the monitoring point
connected to TTSENSE exceeds the programmed VRTT temperature threshold.
Thermal Throttling Sense Input and OVP Disable. The center point of a resistor divider (where the lower resistor is
an NTC thermistor) between VCC and GND is connected to this pin to remotely sense the temperature at the
desired thermal monitoring point. Grounding TTSENSE disables OVP function.
Supply Voltage for the Device.
Power State Indicator Input. Pulling this pin to GND forces the ADP3207 to operate in single-phase mode.
Deeper Stop Control Input.
Voltage Identification DAC Inputs. When in normal operation mode, the DAC output programs the FB regulation
voltage from 0.3 V to 1.5 V (see Table 6).
Rev. 0 | Page 9 of 32
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ADP3207