component
GM12033AHZ-33-RL
Public Made by Adomby adom
GONGMOSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-5. 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
markdownGM12033AHZ-33-RL
GONGMOSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-5
GM12033AHZ-33-RL from GONGMOSEMI, in a TO-263-5. 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: pulling high enables the device and pulling low disables it; if enable is not needed it must be connected to IN (VEN_IL 0.4 V max, VEN_IH 1.1 V min, 6.5 V max). |
| 2 | IN | power_in | Input supply pin (1.5 V to 6.5 V) requiring a 10 µF or larger ceramic capacitor to ground placed as close to the pin as possible. |
| 3 | GND | power_in | Ground pin, which must have a low-impedance connection to the thermal pad. |
| 4 | OUT | power_out | Regulated output pin (3.3 V fixed for this variant) requiring a 47 µF or larger ceramic capacitor to GND placed as close to the pin as possible. |
| 5 | FB/NC | unconnected | Feedback pin on the adjustable version; on the fixed-output version such as this 3.3 V part, NC must be left floating. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GONGMOSEMI |
| Package | TO-263-5 |
| Category | Power Management (PMIC) |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Minimum IN voltage (UVLO) | VUVLO | 1.32 | 1.49 | V | VIN rising | 6 | |
| GND pin current | IGND | 15 | mA | VIN = 6.5 V, IOUT = 5 mA | 6 | ||
| GND pin current shutdown | IGND | 18 | µA | Shutdown, VIN = 6.5 V, VEN = 0.5 V | 6 | ||
| Output voltage accuracy | VFB | -1 | 1.3 | % | VIN = 1.5 V, VOUT = 0.5V, 5 mA ≤ IOUT ≤ 3 A | 6 | |
| FB pin leakage current | IFB | -100 | 100 | nA | VIN = 6.5 V | 6 | |
| Dropout voltage | VDO | 140 | 260 | mV | VIN = 1.4 V, IOUT = 3 A, VFB = 0.5 V, 3% | 6 | |
| Dropout voltage | VDO | 115 | 220 | mV | VIN = 3.3 V, IOUT = 3 A, VFB = 0.5 V, 3% | 6 | |
| Dropout voltage | VDO | 120 | 210 | mV | VIN = 5.6 V, IOUT = 3 A, VFB = 0.5 V, 3% | 6 | |
| Output current limit | ILIM | 3.7 | 4.2 | 4.7 | A | VOUT forced to 0.9 × VOUT(nom), VIN = VOUT(nom) + 0.4 V | 6 |
| EN pin low input voltage | VEN_IL | 0 | 0.4 | V | 6 | ||
| EN pin high input voltage | VEN_IH | 1.1 | 6.5 | V | 6 | ||
| EN pin current | IEN | -0.1 | 0.1 | µA | VIN = 6.5 V, VEN = 0 V and 6 V | 6 | |
| IN, EN to GND voltage | -0.3 | 7 | V | 5 | |||
| OUT to GND voltage | -0.3 | 7 | V | VIN+0.3 V upper limit | 5 | ||
| FB/NC to GND voltage | -0.3 | 6 | V | 5 | |||
| Storage temperature range | -65 | 150 | °C | 5 | |||
| Operating temperature range | -40 | 125 | °C | 5 | |||
| Junction-to-ambient thermal resistance | θJA | 30 | °C/W | 5-lead TO-263 | 5 | ||
| UVLO hysteresis | VUVLO_HYS | 115 | mV | 6 | |||
| Output voltage (fixed) | VFB | 3.3 | V | Fixed output version | 6 | ||
| Voltage regulation | ΔVOUT/ΔVIN | 0.1 | mV/V | VIN = Max(VOUT + 0.4V, 1.5 V) to 6.5 V | 6 | ||
| Load regulation | ΔVOUT/ΔIOUT | 0.2 | mV/A | 5 mA ≤ IOUT ≤ 3 A | 6 | ||
| PSRR | PSRR | 40 | dB | VIN, VOUT = 0.4 V, IOUT = 3 A, COUT = 22 μF, f = 10 kHz, VOUT = 3.3 V | 6 | ||
| PSRR | PSRR | 25 | dB | VIN, VOUT = 0.4 V, IOUT = 3 A, COUT = 22 μF, f = 500 kHz, VOUT = 3.3 V | 6 | ||
| Output noise | VN | 40 | μVRMS | BW = 10 Hz to 100 kHz, VOUT = 3.3 V, IOUT = 3 A, COUT = 47 μF // 10μF // 10μF | 6 | ||
| Thermal shutdown temperature | TSD | 150 | °C | Shutdown threshold, temperature rising | 6 | ||
| Thermal shutdown hysteresis | TSD_HYS | 20 | °C | Turn-on threshold, temperature falling | 6 |
CAD (KiCad official)
- Symbol:
GM12033AHZ-33-RL - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
gm12033ahz-33-rl-etched.step/gm12033ahz-33-rl-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);gm12033ahz-33-rl.step/gm12033ahz-33-rl.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GONGMOSEMI datasheet (11 pp, sha256
a6cb0ebd76afa285, retrieved 2026-10-23, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-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).