ADP1882-1.0-EVALZ Analog Devices Inc, ADP1882-1.0-EVALZ Datasheet - Page 6

• Manufacturer Part Number: ADP1882-1.0-EVALZ
• Description: 1 MHz Synchronous Current-Mode Buck Controller Eval. Board
• Manufacturer: Analog Devices Inc

Specifications of ADP1882-1.0-EVALZ

• Silicon Manufacturer: Analog Devices
• Application Sub Type: PWM Buck Controller
• Kit Application Type: Power Management - Voltage Regulator
• Silicon Core Number: ADP1882
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADP1882/ADP1883
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 4. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
Mnemonic
VIN
COMP/EN
FB
GND
VDD
DRVL
PGND
DRVH
SW
BST
Description
High Input Voltage. Connect VIN to the drain of the upper-side MOSFET.
Output of the Internal Error Amplifier/IC Enable. When this pin functions as EN, applying 0 V to this pin disables the IC.
Noninverting Input of the Internal Error Amplifier. This is the node where the feedback resistor is connected.
Analog Ground Reference Pin of the IC. All sensitive analog components should be connected to this ground
plane (see the Layout Considerations section).
Bias Voltage Supply for the ADP1882/ADP1883 Controller, Including the Output Gate Drivers. A bypass capacitor
of 1 μF directly from this pin to PGND and a 0.1 μF across VDD and GND are recommended.
Drive Output for the External Lower-Side N-Channel MOSFET. This pin also serves as the current-sense gain
setting pin (see Figure 69).
Power GND. Ground for the lower-side gate driver and lower-side N-channel MOSFET.
Drive Output for the External Upper-Side, N-Channel MOSFET.
Switch Node Connection.
Bootstrap for the Upper-Side MOSFET Gate Drive Circuitry. An internal boot rectifier (diode) is connected
between VDD and BST. A capacitor from BST to SW is required. An external Schottky diode can also be
connected between VDD and BST for increased gate drive capability.
COMP/EN
GND
VDD
VIN
FB
Figure 3. Pin Configuration
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1
2
3
4
5
(Not to Scale)
ADP1882/
ADP1883
TOP VIEW
10
9
8
7
6
BST
SW
DRVH
PGND
DRVL