NX9415CMTR Microsemi Analog Mixed Signal Group, NX9415CMTR Datasheet - Page 4

• Manufacturer Part Number: NX9415CMTR
• Description: IC BUCK SYNC ADJ 5A MCM-24L
• Manufacturer: Microsemi Analog Mixed Signal Group
• Type: Step-Down (Buck)r

Specifications of NX9415CMTR

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: Adj to 0.8V
• Current - Output: 5A
• Frequency - Switching: 200kHz ~ 2.2MHz
• Voltage - Input: 9 ~ 22 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 24-VQFN Exposed Pad, 24-HVQFN, 24-SQFN, 24-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

PIN DESCRIPTIONS
Rev.1.2
12/28/09
21-20,16,PAD1
4,12,15, PAD3
2-3,22,PAD2
23-24,1
PIN #
17-19
10
13
14
11
5
6
7
8
9
PIN SYMBOL
5VREG
COMP
BST
OCP
VCC
GND
VIN
NC
FB
S1
D2
S2
D1
RT
Source of high side MOSFET and provides return path for the high side driver.
Drain of low side MOSFET.
Source of low side MOSFET and needs to be connected to power ground.
Drain of high side MOSFET.
An internal 5V regulator. A high frequency 4.7uF/X5R ceramic capacitor must be
connected from this pin to the GND pin as close as possible.
Voltage supply for internal analog circuit and driver
Voltage supply for the internal 5V regulator.
Oscillator's frequency can be set by using an external resistor from this pin to
GND.
Ground.
This pin is the output of the error amplifier and is used to compensate the voltage
control feedback loop. This pin is also used as a shut down pin. When this pin is
pulled below 0.3V, both drivers are turned off and internal soft start is reset.
This pin is the error amplifier inverting input. This pin is connected via resistor
divider to the output of the switching regulator to set the output DC voltage.
This pin supplies voltage to the high side driver. A high frequency
ceramic capacitor of 0.1 to 1uF must be connected from this pin to SW pin.
This pin is connected to the D2 of the low side MOSFET and is the input of the
over current protection(OCP) comparator. An fixed internal current flows to the
external resistor which sets the OCP voltage across the Rdson of the low side
MOSFET. Current limit point is this voltage divided by the Rds-on.
Not used pin. Connecting these pins to ground is recommended.
PIN DESCRIPTION
NX9415
4