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TPS73630DCQR

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-6

TPS73630DCQR from Texas Instruments, in a SOT-223-6. 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	IN	power_in	Input supply pin; the recommended input voltage range is 1.7 V to 5.5 V, and the absolute maximum VIN is 6 V.
2	OUT	power_out	Regulator output, which remains stable without any external output capacitor and is rated for an absolute maximum of 5.5 V.
3	GND	power_in	Ground pin; the bypass-capacitor ground connections must go directly to the GND pin.
4	NR/FB	passive	For the fixed-voltage versions (including TPS73630) this is the NR pin, where an external noise-reduction capacitor (for example 10 nF) is connected to ground to lower output noise; the adjustable version uses this pin as FB.
5	EN	input	Active-high enable compatible with standard TTL-CMOS levels: VEN ≥ 1.7 V turns the regulator on and VEN ≤ 0.5 V shuts it down.
6	GND	power_in	Second ground pin on the SOT-223 package, electrically the same ground as pin 3.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-223-6
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
Input voltage range	VIN	1.7		5.5	V		6
Output voltage accuracy, nominal		-0.5		0.5	%	标称值 TJ = 25°C	6
Output voltage accuracy over line, load and temperature		-1	0.5	1	%	VOUT + 0.5V ≤ VIN ≤ 5.5V; 10mA ≤ IOUT ≤ 400mA	6
Dropout voltage	VDO		75	200	mV	VIN = VOUT(nom) - 0.1V, IOUT = 400mA	6
Output current limit (legacy device)	ICL	400	650	800	mA	VOUT = 0.9 × VOUT(nom); 传统器件	6
Output current limit (legacy device, 0-70°C row)	ICL	500		800	mA	VOUT = 0.9 × VOUT(nom); 3.6V ≤ VIN ≤ 4.2V, 0℃ ≤ TJ ≤ 70℃; 传统器件	6
Output current limit (new device)	ICL	500		800	mA	VOUT = 0.9 × VOUT(nom); 新器件	6
Reverse leakage current (fixed-voltage versions)	IREV		0.1	10	µA	VEN ≤ 0.5V, 0V ≤ VIN ≤ VOUT	6
Ground pin current at IOUT = 10mA (legacy device)	IGND		400	550	µA	IOUT = 10mA (IQ); 传统器件	6
Ground pin current at IOUT = 10mA (new device)	IGND		400	630	µA	IOUT = 10mA (IQ); 新器件	6
Ground pin current at IOUT = 400mA	IGND		800	1000	µA	IOUT = 400mA	6
Shutdown current (legacy device)	ISHDN		0.02	1	µA	VEN ≤ 0.5V, VOUT ≤ VIN ≤ 5.5V, –40°C ≤ TJ ≤ 100℃; 传统器件	6
Shutdown current (new device)	ISHDN		0.02	1	µA	VEN ≤ 0.5V, VOUT ≤ VIN ≤ 5.5V; 新器件	6
EN pin high-level voltage (enabled)	VEN(high)	1.7			V		6
EN pin low-level voltage (shutdown)	VEN(low)	0		0.5	V		6
Enable pin current (enabled)	IEN(high)		0.02	0.1	µA	VEN = 5.5V	6
Operating junction temperature	TJ	-40		125	℃		6
Junction-to-ambient thermal resistance (DCQ)	RθJA		118.7		°C/W	DCQ (SOT-223, 6-pin) package, JEDEC high-K board	5
Junction-to-case (top) thermal resistance (DCQ)	RθJC(top)		64.9		°C/W	DCQ (SOT-223, 6-pin) package	5
Junction-to-board thermal resistance (DCQ)	RθJB		65		°C/W	DCQ (SOT-223, 6-pin) package	5
Junction-to-top characterization parameter (DCQ)	ψJT		14		°C/W	DCQ (SOT-223, 6-pin) package	5
Junction-to-board characterization parameter (DCQ)	ψJB		63.8		°C/W	DCQ (SOT-223, 6-pin) package	5

CAD (KiCad official)

Symbol: TPS73630DCQR
Footprint: Package_TO_SOT_SMD:SOT-223-6
3D model: SOT-223-6 (KiCad packages3D, STEP)
3D model files: tps73630dcqr-etched.step / tps73630dcqr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps73630dcqr.step / tps73630dcqr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (49 pp, sha256 5ed5c95a399b519d, retrieved 2026-10-08, 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF