component
PAM2321AYMADJ
Public Made by Adomby adom
Diodes Incorporated DC-DC Converters, TDFN-10(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownPAM2321AYMADJ
Diodes Incorporated · DC-DC Converters · TDFN-10(3x3)
PAM2321AYMADJ from Diodes Incorporated, in a TDFN-10(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | EN | input | Enable input; a logic low disables the converter (shutdown current below 1µA) and a high level resumes normal operation, with thresholds of 1.4V high and 0.4V low. |
| 2 | PVIN | power_in | Input power supply tied to the source of the high side P-Channel MOSFET, operating range 2.7V to 5.5V. |
| 3 | VIN | power_in | Power supply for the internal circuitry; a small decoupling capacitor should be placed between VIN and AGND. |
| 4 | AGND | power_in | Analog ground, internally connected to the analog ground of the control circuitry. |
| 5 | FB | input | Feedback input connected to an external resistor divider for the adjustable output version, with a regulated feedback voltage of 0.600V typical. |
| 6 | AGND | power_in | Analog ground, internally connected to the analog ground of the control circuitry. |
| 7 | SW | passive | Switching node to which the inductor is connected, internally tied to the drain of both high and low side MOSFETs. |
| 8 | SW | passive | Switching node to which the inductor is connected, internally tied to the drain of both high and low side MOSFETs. |
| 9 | PGND | power_in | Main power ground return pin, connected to the output and input capacitor return. |
| 10 | PGND | power_in | Main power ground return pin, connected to the output and input capacitor return. |
| 11 | EP | power_in | Exposed pad providing electrical ground contact and thermal contact to the PCB; it must be soldered to the PCB for proper operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | TDFN-10(3x3) |
| Category | Power Management (PMIC) |
| Pins | 11 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Voltage | -0.3 | 6.5 | V | 3 | |||
| EN, FB Pin Voltage | -0.3 | V | 3 | ||||
| SW Pin Voltage | -0.3 | V | 3 | ||||
| Junction Temperature | 150 | °C | 3 | ||||
| Storage Temperature Range | -65 | 150 | °C | 3 | |||
| Soldering Temperature | 300 | °C | 5 sec | 3 | |||
| Supply Voltage | 2.5 | 5.5 | V | 3 | |||
| Operation Temperature Range | -40 | 85 | °C | 3 | |||
| Junction Temperature Range | -40 | 125 | °C | 3 | |||
| Thermal Resistance (Junction to Case) | θJC | 8.5 | °C/W | TDFN3x3-10 package | 3 | ||
| Thermal Resistance (Junction to Ambient) | θJA | 60 | °C/W | TDFN3x3-10 package | 3 | ||
| Internal Power Dissipation | PD | 1.66 | W | TDFN3x3-10 package | 3 | ||
| Input Voltage Range | VIN | 2.7 | 3.3 | 5.5 | V | 4 | |
| UVLO Threshold | VUVLO | 2.6 | 2.7 | V | VIN Rising | 4 | |
| Output Voltage Range | VOUT | 1 | 1.2 | V | 4 | ||
| Output Voltage Accuracy | VOUT | -3 | 3 | % | IO = 0mA | 4 | |
| Regulated Feedback Voltage | VFB | 0.588 | 0.6 | 0.612 | V | No Load | 4 |
| Output Voltage Line Regulation | LNR | 0.3 | %/V | VIN = 3.3V to 4V | 4 | ||
| Output Voltage Load Regulation | LDR | 1 | %/A | IO = 1mA to 2A | 4 | ||
| Quiescent Current | IQ | 55 | 90 | µA | No Load | 4 | |
| Shutdown Current | ISD | 1 | µA | VEN = 0V | 4 | ||
| Drain-Source On-State Resistance, P MOSFET | RDS(ON) | 130 | mΩ | IDS = 100mA | 4 | ||
| Drain-Source On-State Resistance, N MOSFET | RDS(ON) | 90 | mΩ | IDS = 100mA | 4 | ||
| SW Leakage Current | ILSW | 1 | µA | 4 | |||
| EN Threshold High | VEH | 1.4 | V | 4 | |||
| EN Threshold Low | VEL | 0.4 | V | 4 | |||
| EN Leakage Current | IEN | -0.01 | 0.01 | µA | 4 | ||
| UVLO Threshold | VUVLO | 2 | V | VIN Falling | 4 | ||
| UVLO Hysteresis | 250 | mV | 4 | ||||
| PMOS Current Limit | ILIM | 3 | A | 4 | |||
| Oscillator Frequency | fOSC | 3 | MHz | 4 | |||
| Start-Up Time | tS | 200 | µs | VIN = 3.3V, VO = 1.2V | 4 | ||
| PSM Threshold | ITH | 200 | mA | 4 | |||
| Over Temperature Protection | OTP | 150 | °C | 4 | |||
| OTP Hysteresis | OTH | 30 | °C | 4 |
CAD (KiCad official)
- Symbol:
PAM2321AYMADJ - Footprint:
Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm - 3D model: TDFN-10(3x3) (KiCad packages3D, STEP)
- 3D model files:
pam2321aymadj-etched.step/pam2321aymadj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pam2321aymadj.step/pam2321aymadj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (11 pp, sha256
d1be6786017ff183, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).