ADP3050-BL1-EVZ Analog Devices Inc, ADP3050-BL1-EVZ Datasheet - Page 5

• Manufacturer Part Number: ADP3050-BL1-EVZ
• Description: Blank ADISimPower Eval ADP3050
• Manufacturer: Analog Devices Inc

Specifications of ADP3050-BL1-EVZ

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 3. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
FB
GND
Mnemonic
SWITCH
BOOST
BIAS
COMP
SD
IN
Description
Switch Node. This pin is the emitter of the internal NPN power switch. The voltage at this pin switches between
V
Boost Pin. This pin is used to provide a boosted voltage (higher than V
switch. With the higher drive voltage, the power switch can be saturated, greatly reducing the switch power
losses.
Bias Input Pin. Connect this pin to the regulated output voltage to maximize system efficiency. When this pin is
above 2.7 V, most of the ADP3050 operating current is taken from the output instead of the input supply. Leave
unconnected if not used.
Feedback Pin. This feedback pin senses the regulated output voltage. Connect this pin directly to the output
(fixed output versions).
Compensation Node. This pin is used to compensate the regulator with an external resistor and capacitor. This
pin is also used to override the control loop. However, the voltage on this pin should not exceed 2 V, because
the pin is internally clamped to ensure a fast transient response. Use a pull-up resistor if this pin is to be pulled
higher than 2 V.
Shutdown Pin. Use this pin to turn the device on and off. If this feature is not needed, tie this pin directly to IN.
Ground Pin. Connect this pin to local ground plane.
Power Input. Connect this pin to the input supply voltage. An input bypass capacitor must be placed close to
this pin to ensure proper regulator operation.
IN
and approximately −0.5 V.
SWITCH
BOOST
BIAS
FB
Figure 2. Pin Configuration
Rev. B | Page 5 of 24
1
2
3
4
(Not to Scale)
ADP3050
TOP VIEW
8
7
6
5
IN
GND
SD
COMP
IN
) for the drive stage of the NPN power
ADP3050