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TL594G-S16-R

UTC Unisonic Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOP-16

TL594G-S16-R from UTC Unisonic Tech, in a SOP-16. 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	1IN+	input	Non-inverting input of error amplifier 1; common-mode input range is -0.3 V to VCC-2 V.
2	1IN-	input	Inverting input of error amplifier 1; common-mode input range is -0.3 V to VCC-2 V.
3	FEEDBACK	input	Input to the feedback PWM comparator; the current into this terminal is limited to 0.3 mA maximum.
4	DTC	input	Dead-time control input; the voltage on this pin sets dead time, with zero duty cycle at about 3 to 3.3 V and maximum duty cycle at 0 V.
5	CT	passive	Timing capacitor connection; the datasheet specifies CT from 0.47 nF to 10000 nF.
6	RT	passive	Timing resistor connection; the datasheet specifies RT from 1.8 kΩ to 500 kΩ.
7	GND	power_in	Ground reference pin for the device.
8	C1	output	Collector of output transistor Q1; collector output voltage is 40 V recommended (41 V absolute maximum) and each transistor is rated 200 mA recommended.
9	E1	output	Emitter of output transistor Q1, usable in common-emitter or emitter-follower output configuration.
10	E2	output	Emitter of output transistor Q2, usable in common-emitter or emitter-follower output configuration.
11	C2	output	Collector of output transistor Q2; collector output voltage is 40 V recommended (41 V absolute maximum) and each transistor is rated 200 mA recommended.
12	VCC	power_in	IC supply input; 7 V to 40 V recommended, with 41 V absolute maximum.
13	Output CTRL	input	Output control input; at 0 V it selects single-ended or parallel output, and at VREF it selects normal push-pull operation.
14	REF	power_out	5 V internal reference output, 4.95 V to 5.05 V at 1 mA and 25 °C, with short-circuit current of 10 to 50 mA.
15	2IN-	input	Inverting input of error amplifier 2; common-mode input range is -0.3 V to VCC-2 V.
16	2IN+	input	Non-inverting input of error amplifier 2; common-mode input range is -0.3 V to VCC-2 V.

Key specifications

Parameter	Value
Manufacturer	UTC Unisonic Tech
Package	SOP-16
Category	Power Management (PMIC)
Pins	16

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Supply Voltage	VCC			41	V		4
Collector Output Voltage	VC1, VC2			41	V		4
Collector Output Current	IC1, IC2			250	mA		4
Junction Temperature	TJ			150	°C		4
Operating Temperature	TOPR	-40		85	°C		4
Storage Temperature	TSTG	-65		150	°C		4
Supply Voltage	VCC	7		40	V		4
Amplifier Input Voltage	VIN	-0.3			V		4
Collector Output Voltage	VC1, VC2			40	V		4
Collector Output Current (Each Transistor)	IC1, IC2			200	mA		4
Current Into Feedback Terminal	lFB			0.3	mA		4
Timing Capacitor	CT	0.47		10000	nF		4
Timing Resistor	RT	1.8		500	kΩ		4
Oscillator Frequency	fOSC	1		300	kHz		4
Output Voltage (REF)	VREF	4.95	5	5.05	V	IOUT = 1mA, Ta = 25°C	4
Input Regulation	∆VOUT		2	25	mV	VCC = 7V~40V, Ta = 25°C	4
Output Regulation	∆VOUT		14	35	mV	IOUT = 1~10mA, Ta = 25°C	4
Output-Voltage Change with Temperature			2	10	mV/V	∆Ta = Min~Max	4
Short-Circuit Output Current	ISC	10	35	50	mA	VREF = 0V	4
Input Bias Current (DT)	IIB (DT)	-10		-2	μA	VIN= 0 ~ 5.25V	4
Maximum Duty Cycle, Each Output	DCMAX			0.45		DTC = 0V	4
Input Threshold Voltage, Zero Duty Cycle	VTH	3	3.3		V	Zero Duty Cycle	4
Collector-Emitter Saturation Voltage, Common Emitter	VSAT(C)		1.1	1.3	V	VE=0, IC=200mA	5
Collector-Emitter Saturation Voltage, Emitter Follower	VSAT(E)		1.5	2.5	V	VC=15V, IE=−200mA	5
Collector Off-State Current	IC(OFF)		2	100	μA	VC=40V, VE=0V, VCC=40V	5
Collector Off-State Current (DTC and Output CTRL low)	IC(OFF)		4	200	μA	DTC and Output CTRL = 0V, VC=15V, VE=0V, VCC=1~3V	5
PWM Comparator Input Threshold Voltage	VTH	4	4.5		V	Zero duty cycle	5
Input Sink Current	II(SINK)		0.3	0.7	mA	FEEDBACK = 0.5V	5
Undervoltage Lockout Threshold Voltage (over temperature)	VTH	3.5		6.9	V	∆Ta = Min~Max	5
Standby Supply Current (VCC = 15V)	ISTN-BY		9	15	mA	VCC = 15V; RT at VREF; all other inputs and outputs open	5
Standby Supply Current (VCC = 40V)	ISTN-BY		11	18	mA	VCC = 40V; RT at VREF; all other inputs and outputs open	5
Input Offset Voltage, Error Amplifier	VI(OFF)		2	10	mV	FEEDBACK = 2.5V	5
Input Offset Current	II(OFF)		25	250	nA	FEEDBACK = 2.5V	5
Input Bias Current	IIB		0.2	1	μA	FEEDBACK = 2.5V	5
Common-Mode Input Voltage Range, Error Amplifier	VICR	0.3			V	VCC=7V~40V	5
Open-Loop Voltage Amplification Gain, Error Amplifier	AVOL	70	95		dB	∆VOUT=3V, RL =2kΩ, VOUT = 0.5V~3.5V	5
Common-Mode Rejection Ratio, Error Amplifier	CMRR	65	80		dB	VCC = 40V, Ta=25°C	5
Output Sink Current, FEEDBACK	IO(SINK)		0.3	0.7	mA	VID =-15mV~-5V, FEEDBACK = 0.5V	5
Output-Voltage Rise Time (Emitter-Follower)	Tr		200	400	ns	Emitter-Follower Configuration (see Figure 3)	5
Output-Voltage Fall Time (Emitter-Follower)	Tf		45	100	ns	Emitter-Follower Configuration (see Figure 3)	5
Output-Voltage Rise Time (Common-Emitter)	Tr		100	200	ns	Common-Emitter Configuration (see Figure 4)	5
Output-Voltage Fall Time (Common-Emitter)	Tf		30	100	ns	Common-Emitter Configuration (see Figure 4)	5
Junction to Ambient (SOP-16)	θJA		64		°C/W		4
Oscillator Frequency	fOSC		10		kHz	CT = 0.01μF, RT = 12KΩ (See Figure 1)	4
Standard Deviation of Frequency	σfOSC		100		Hz/kHz	All values of VCC, CT, RT, and Ta constant	4
Frequency Change With Voltage	∆fOSC(∆V)		1		Hz/kHz	VCC = 7V ~ 40V, Ta = 25°C	4
Frequency Change With Temperature	∆fOSC(∆T)		50		Hz/kHz	∆Ta = Min~Max	4
Input Threshold Voltage, Maximum Duty Cycle	VTH		0		V	Maximum Duty Cycle	4
Emitter Off-State Current	IE(OFF)		-100		μA	VCC=VC=40V, VE=0	5
Hysteresis	VHYS		100		mV		5
Average Supply Current			12.4		mA	DTC = 2V, See Figure 1	5
Unity-Gain Bandwidth	BW		800		kHz	VOUT = 0.5V ~3.5V, RL =2kΩ	5
Output Source Current, FEEDBACK	IO(SOURCE)		-2		mA	VID = 15mV~5V, FEEDBACK = 3.5V	5
Output Control Input Current	IOC		3.5		mA	VIN=VREF	5
Undervoltage Lockout Threshold Voltage (Ta = 25°C)	VTH		6		V	Ta = 25°C	5

CAD (KiCad official)

Symbol: TL594G-S16-R
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOP-16 (KiCad packages3D, STEP)
3D model files: tl594g-s16-r-etched.step / tl594g-s16-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl594g-s16-r.step / tl594g-s16-r.glb are the bare package body.

Provenance

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

Datasheet: UTC Unisonic Tech datasheet (9 pp, sha256 b9a96ca7ee972bef, retrieved 2026-10-19, tier: lcsc)
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