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Yes. Change the feedback resistors so that VOUT * (R_FB2 / (R_FB1+R_FB2)) = 0.8V. For 5V output, if R_FB2 = 1kΩ, then R_FB1 = 5.25kΩ.
The internal structure of the PBM27A210MVR consists of a MOSFET transistor with an intrinsic body diode.
Schematic Representation:
Drain (Pin 2 / Tab)
|
+------|>|-------+-----> To Source (Pin 3)
| (Body Diode) |
| |
| |
D (Drain Junction) |
| |
----- |
| N | |
|-----| |
Gate--| P |-- Source ----+
(Pin 1)|-----| (Pin 3)
| N |
-----
If you are designing a PCB using the full diagram of the PBM27A210MVR, follow these rules:
Websites like Utsource, ElectroParts, and Badcaps.net forums often have user-uploaded schematics. Search for "PBm27A210MVR schematic PDF." pbm27a210mvr diagram full
| Pin | Name | Function | Key External Component | |-----|-------------|--------------------------------------------------------------------------|--------------------------------------| | 1 | VIN | Main power input (18V to 27V DC) | Bulk capacitor (100µF, 50V) | | 2 | EN/UVLO | Enable / Under-voltage lockout. Pull high (>2.5V) to enable. | Resistor divider to VIN | | 3 | RT/SYNC | Switching frequency set resistor or external clock input (typical 300kHz)| R_set to GND (e.g., 100k for 300kHz) | | 4 | FB | Feedback voltage input (0.8V nominal). Connect to resistor divider from VOUT | Resistor divider (R1, R2) | | 5 | COMP | Compensation pin for loop stability (RC network to GND) | Series RC (10k + 1nF typical) | | 6 | GND | Power and signal ground | Direct to system ground plane | | 7 | GND | Second ground pin (for high current return) | Connect to pin 6 | | 8 | SW | Switching node (connect to inductor) | Inductor (2.2µH to 10µH) | | 9 | BOOT | Bootstrap capacitor for high-side gate drive | 100nF ceramic to SW pin | | 10 | VOUT | Regulated output voltage (externally adjustable) + sense line | Output capacitor bank |
If you have the physical module:
If you find the datasheet or internal schematic, it usually shows:
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