MC33565DR2 ON Semiconductor, MC33565DR2 Datasheet - Page 2

• Manufacturer Part Number: MC33565DR2
• Description: IC REG SMART PERIPHERAL 8SOIC
• Manufacturer: ON Semiconductor

Specifications of MC33565DR2

• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: 4.3 ~ 5.5 V
• Number Of Regulators: 1
• Current - Output: 200mA
• Operating Temperature: -5°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Dropout (typical): -
• Current - Limit (min): -
• Other names: MC33565DR2OS

PIN ASSIGNMENTS AND FUNCTIONS
PIN #
2, 5
1
3
4
6
7
8
5.0 V
3.3 V
Regulator Output
Auxiliary Input
Switch Drive
Auxiliary
Sense Input
FUNCTION
Main Input
Input
Input
Main
Gnd
NC
1
3
23.1 k
10.4 k
This input connects to the system main power source, typically 5.0 V.
No connection. These pins are not internally connected.
This input connects to the system auxiliary power source, typically 3.3 V.
This is the regulator and control circuit power ground.
The sense input connects directly to the load allowing precise regulation.
This output is precisely regulated at 3.3 V and is capable of up to 200 mA.
This output is designed to drive the gate of an external P−channel MOSFET switch.
Reference
1.25 V
Figure 2. Functional Block Diagram
Ground
http://onsemi.com
MC33565
Regulator
Shutdown
Thermal
3.3 V
Low Voltage
+
+
4
−
−
2
Current
Sense
Detector
4.02 V/
4.17 V
PIN DESCRIPTION
475
289
8
7
6
Switch
Drive
Regulator
Output
Sense
Input
G
3.3 V
D
S
Load
+
External
P−Channel
MOSFET
4.7 mF