NJM2309 Series
Switching Regulator Control IC for Step-Down
NJM2309 Series
Switching Regulator Control IC for Step-Down
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Description
The NJM2309 is a step-down Switching regulator IC with a wide operating voltage.It features an open collector driver that can configure step-down applications.Internal soft-start function and timer latch function for short circuit protection are included, requiring no external components.
Spec
Standard | |
---|---|
Input Voltage Range | 3.6 V to 32 V (36 V) |
Operating Temperature Range | -40°C to 85°C |
Supply Current | Typ. 5500 µA |
Output Voltage Range | 0.52 V to 30 V |
Output Voltage Accuracy | ± 2 % |
Oscillator Frequency | 5kHz to 500 kHz |
Maximum Duty Cycle | Duty Cycle (0% to 100%) |
Package | DMP8 SOP8 JEDEC 150mil SSOP8 |
Control | PWM switching control |
Function | Soft Start function Timer Latch for Short Circuit Protection |
Note | Under Voltage Lockouts (U.V.LO) |
Protections / Functions
TSD | ILX | OCP | OVP | UVLO | OVLO | Reverse | Shutdown | Soft Start | SSCG | PGOOD | Auto Discharge | Anti-ringing | Sequencing | Max Duty | Ext. Phase | LED Adjust |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Functional Description
TSD | Thermal Shutdown Function |
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ILX | LX Current Limit Function |
OCP | Overcurrent Protection |
OVP | Overvoltage Protection |
UVLO | Undervoltage Lockout Protection |
OVLO | Overvoltage Lockout Protection |
Reverse | Reverse Current Protection Circuit |
Shutdown | Shutdown Function |
Soft Start | Soft Start Function |
SSCG | Spread Spectrum Clock Generator Function |
PGOOD | Power Good Output |
Auto Discharge | Auto Discharge Function |
Anti-ringing | Anti-ringing Switch Function |
Sequencing | Start-up Sequencing Control |
Max Duty | Maximum Duty Cycle |
Ext. Phase | Externally Adjustable Phase Compensation |
LED Adjust | LED High-speed Dimming Control |
Technical Documents
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Related Links
Quality & Packages
Product Name | Compatibility | Package | Marking | Reliability |
---|---|---|---|---|
NJM2309M |
|
DMP8 | - | NJM-1-s-fr |
NJM2309E |
|
SOP8 JEDEC 150mil(EMP8) | - | NJM-1-s-fr |
NJM2309V |
|
SSOP8 | - | NJM-1-s-fr |
- Refer to the datasheets for the details on the product.
- The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
FAQ
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NJM2309 Series