RT9080-33GJ5

Low-Dropout Linear Regulator

The RT9080-33GJ5 is a low-dropout linear regulator from Richtek USA Inc.. View the full RT9080-33GJ5 datasheet below including key specifications, electrical characteristics.

Official RT9080-33GJ5 datasheet (PDF) — the source this page was extracted from.

Manufacturer

Richtek USA Inc.

RT9080-33GJ5 Key Specifications

Parameter	Value
Control Features	Enable
Output Current	600mA
Quiescent Current	4 µA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature	-40°C ~ 85°C (TA)
Output Configuration	Positive
Output Type	Fixed
Package / Case	SOT-23-5 Thin, TSOT-23-5
Packaging	Cut Tape
Protection Features	Over Current, Over Temperature
PSRR	75dB (1kHz)
Standard Pack Qty	3000
Supplier Device Package	TSOT-23-5
Input Voltage (Max)	5.5V
Output Voltage	3.3V
Dropout Voltage	0.53V @ 600mA

RT9080-33GJ5 Overview

Part: RT9080 / RT9080N from Richtek

Type: Low-Dropout (LDO) Linear Regulator

Description: 1.2–5.5 V input, 600mA low-dropout linear regulator with 2 μA quiescent current, ±2% output accuracy, and over-temperature protection.

Operating Conditions:

Supply voltage: 1.2V to 5.5V
Operating temperature: -40°C to 125°C (Junction)
Output current: 0mA to 600mA
Fixed Output Voltage: 0.8V to 3.3V

Absolute Maximum Ratings:

Max supply voltage: 6.5V (VIN, VOUT, SNS, EN to GND)
Max continuous current: 600mA (output current)
Max junction/storage temperature: 150°C (Junction), -65°C to 150°C (Storage)

Key Specs:

Output Voltage Range: 0.8V to 3.3V
Output Voltage Accuracy: ±2% (ILOAD = 1mA)
Dropout Voltage: 0.31V (Typ, ILOAD = 600mA, VOUT ≥ 3V)
Quiescent Current (IQ): 2 μA (Typ, ILOAD = 0mA)
Shutdown GND Current (ISHDN): 0.1 μA (Typ, VEN = 0V)
Power Supply Rejection Ratio (PSRR): 75dB (Typ, f = 1kHz)
Current Limit (ILIM): 610mA (Min)
Over-Temperature Protection Threshold: 150°C (Typ)

Features:

2 μA Ground Current at no Load
PSRR = 75dB at 1kHz
Adjustable Output Voltage Available for Specific Applications
±2% Output Accuracy
600mA (VIN ≥ 2.3V) Output Current
Low (0.1 μA) Disable Current
Operating Input Voltage: 1.2V to 5.5V
Dropout Voltage: 0.31V at 600mA when VOUT ≥ 3V
Support Fixed Output Voltage: 0.8V to 3.3V
Stable with Ceramic or Tantalum Capacitor
Current-Limit Protection
Over-Temperature Protection
Available in TSOT-23-5 and ZQFN-4L 1x1 (ZDFN4L 1x1) Packages

Applications:

Portable, Battery Powered Equipment
Ultra Low Power Microcontrollers
Notebook Computers

Package:

TSOT-23-5
ZQFN-4L 1x1 (ZDFN-4L 1x1)

RT9080-33GJ5 Features

⚫ 2 A Ground Current at no Load
⚫ PSRR = 75dB at 1kHz
⚫ Adjustable Output Voltage Available for Specific Applications
⚫ 2% Output Accuracy
⚫ 600mA (VIN 2.3V) Output Current
⚫ Low (0.1 A) Disable Current
⚫ Operating Input Voltage: 1.2V to 5.5V
⚫ Dropout Voltage: 0.31V at 600mA when VOUT 3V
⚫ Support Fixed Output Voltage: 0.8V to 3.3V
⚫ Stable with Ceramic or Tantalum Capacitor
⚫ Current-Limit Protection
⚫ Over-Temperature Protection
⚫ Available in TSOT-23-5 and ZQFN-4L 1x1 (ZDFN4L 1x1) Packages

RT9080-33GJ5 Applications

⚫ Portable, Battery Powered Equipment
⚫ Ultra Low Power Microcontrollers
⚫ Notebook Computers

RT9080-33GJ5 Pin Configuration

RT9080-33GJ5 Electrical Characteristics

(VVOUT + 1 < VIN < 5.5V, TA = 25 C, unless otherwise specified.)

Parameter	Symbol	Test Conditions	Test Conditions	Min	Typ	Max	Unit
Output Voltage	VVOUT			0.8	--	3.3	V
Output Voltage Accuracy	VVOUT_ACC	ILOAD = 1mA	ILOAD = 1mA	- 2	--	2	%
Dropout Voltage		0.8V VVOUT 1.05V (TSOT-23-5)	0.8V VVOUT 1.05V (TSOT-23-5)	--	1.05	1.33
Dropout Voltage		0.8V VVOUT 1.05V (ZQFN-4L 1x1)	0.8V VVOUT 1.05V (ZQFN-4L 1x1)	--	1.05	1.63
Dropout Voltage		1.05V VVOUT 1.2V	1.05V VVOUT 1.2V	--	0.8	1.13
Dropout Voltage		1.2V VVOUT 1.5V	1.2V VVOUT 1.5V	--	0.71	1.03
(ILOAD = 600mA)	VDROP	1.5V VVOUT 1.8V	1.5V VVOUT 1.8V	--	0.57	0.93	V
(Note 6)		1.8V VVOUT 2.1V	1.8V VVOUT 2.1V	--	0.57	0.83
Dropout Voltage		2.1V VVOUT 2.5V	2.1V VVOUT 2.5V	--	0.41	0.73
Dropout Voltage		2.5V VVOUT 3V	2.5V VVOUT 3V	--	0.36	0.63
		3V VVOUT	3V VVOUT	--	0.31	0.53
Quiescent Current	IQ	ILOAD = 0mA, VVOUT 5.5V VVIN VVOUT + VDROP	ILOAD = 0mA, VVOUT 5.5V VVIN VVOUT + VDROP	--	2	4	A
Shutdown GND Current (Note 7)	ISHDN	VEN = 0V	VEN = 0V	--	0.1	0.5	A
Shutdown GND Current (Note 7)	ISHDN	VEN = 0V, VVOUT = 0V	VEN = 0V, VVOUT = 0V	--	0.1	0.5	A
EN Input Current	IEN	VEN = 5.5V	VEN = 5.5V	--	--	0.1	A
Line Regulation			1.2V VVIN 1.5V	--	0.3	0.6	%
Line Regulation	VLINE_REG		1.5V VVIN 1.8V	--	0.15	0.3	%
Line Regulation			1.8V VVIN 5.5V	--	0.13	0.35	%
Load Regulation	VLOAD_REG	1mA < ILOAD < 600mA	1mA < ILOAD < 600mA	--	0.5	1	%
Power Supply Rejection Ratio	PSRR	VVIN = 3V, ILOAD = 50mA, COUT = 1 F, VVOUT = 2.5V, f = 1kHz	VVIN = 3V, ILOAD = 50mA, COUT = 1 F, VVOUT = 2.5V, f = 1kHz	--	75	--	dB
Output Voltage Noise	Vn		VVOUT = 0.8V	--	26	--	VRMS
Output Voltage Noise	Vn		VVOUT = 1.2V	--	37	--	VRMS
Output Voltage Noise	Vn		VVOUT = 1.8V	--	39	--	VRMS
Output Voltage Noise	Vn		1V VVOUT = 3.3V	--	42	--	VRMS
Current Limit	ILIM	VVOUT = 90%VOUT(Normal)	VVOUT = 90%VOUT(Normal)	610	1100	--	mA
EN Input Voltage Rising Threshold	VEN_R	VVIN = 5V	VVIN = 5V	0.9	--	--
EN Input Voltage Falling Threshold	VEN_F	VVIN = 5V	VVIN = 5V	--	--	0.4	V
Over - Temperature Protection Threshold	TOTP	ILOAD = 30mA, VVIN 1.5V	ILOAD = 30mA, VVIN 1.5V	--	150	--	C
Over - Temperature Protection Hysteresis	TOTP_HYS			--	20	--	C
Discharge Resistor	RDISCHG	EN = 0V, VVOUT = 0.1V	EN = 0V, VVOUT = 0.1V	--	80	--

Note 7 . The specification is tested at wafer stage and guaranteed by design after assembly.

RT9080-33GJ5 Thermal Information

For continuous operation, do not exceed absolute maximum junction temperature. The maximum power dissipation depends on the thermal resistance of the IC package, PCB layout, rate of surrounding airflow, and difference between junction and ambient temperature. The maximum power dissipation can be calculated by the f ollowing formula:

PD(MAX) = (TJ(MAX) -TA)/ JA

where TJ(MAX) is the maximum junction temperature, TA is the ambient temperature, and JA is the junction to ambient thermal resistance.

For recommended operating condition specifications, the maximum junction temperature is 125 C and TA is the ambient temperature. The junction to ambient thermal resistance, θJA(EVB), is highly package dependent. For TSOT-23-5 package, the thermal resistance, θJA(EVB), is 100.7 C/W on a standard JEDEC 51-7 four-layer thermal test board. For ZQFN-4L 1x1 (ZDFN-4L 1x1) package, the thermal resistance, θJA(EVB), is 236 C/W on a two-layer Richtek evaluation board. The maximum power dissipation at TA = 25 C can be calculated by the following formula:

PD(MAX) = (125 C -25 C)/(100.7 C/W) = 0.99W for TSOT-23-5 package

PD(MAX) = (125 C -25 C)/(236 C/W) = 0.42W for ZQFN-4L 1x1 (ZDFN-4L 1x1) package

The maximum power dissipation depends on the operating ambient temperature for fixed TJ(MAX) and thermal resistance, θJA(EVB). The derating curves in Figure 6 allow the designer to see the effect of rising ambient temperature on the maximum power dissipation.

Figure 6. Derating Curve of Maximum Power Dissipation

RT9080-33GJ5 Typical Application

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