RT9193-33

LDO Regulator

The RT9193-33 is a ldo regulator from Richtek. View the full RT9193-33 datasheet below including pinout, electrical characteristics, absolute maximum ratings.

Manufacturer

Richtek

Overview

Part: RT9193 — Richtek Technology Corporation

Type: Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator

Description: The RT9193 is a 300mA, ultra-low noise, ultra-fast CMOS LDO regulator designed for portable RF and wireless applications, featuring a wide operating voltage range of 2.5V to 5.5V, low quiescent current, and fast turn-on time.

Operating Conditions:

Supply voltage: 2.5V to 5.5V
Operating temperature: -40°C to 85°C (Ambient)
Max output current: 300mA
Output voltage range: 1.5V to 5V (0.1V step)

Absolute Maximum Ratings:

Max junction temperature: 150°C
Max storage temperature: -65°C to 150°C

Key Specs:

Output Voltage Accuracy: ±2% (I_OUT = 1mA)
Current Limit: 400mA (Typ)
Quiescent Current: 90 μA (Typ, V_EN ≥ 1.2V, I_OUT = 0mA)
Dropout Voltage: 220mV (Typ, I_OUT = 300mA, V_OUT > 2.8V)
Standby Current: 0.01 μA (Typ, V_EN = GND)
Output Noise Voltage: 100 μV RMS (Typ, 10Hz to 100kHz, I_OUT = 200mA)
Power Supply Rejection Ratio (PSRR): 70dB (Typ, f = 100Hz, I_OUT = 10mA)
Thermal Shutdown Temperature: 165°C (Typ)

Features:

Ultra Low Noise for RF Application
Ultra Fast Response in Line/Load Transient
Quick Start-Up (Typically 50 μs)
<0.01 μA Standby Current When Shutdown
Low Dropout : 220mV @ 300mA
Wide Operating Voltage Ranges : 2.5V to 5.5V
TTL-Logic-Controlled Shutdown Input
Low Temperature Coefficient
Current Limiting Protection
Thermal Shutdown Protection
Only 1 μF Output Capacitor Required for Stability
High Power Supply Rejection Ratio
Custom Voltage Available
RoHS Compliant and 100% Lead (Pb)-Free

Applications:

CDMA/GSM Cellular Handsets
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
PCMCIA Cards
Portable Information Appliances

Package:

SC-70-5
SOT-23-5
TSOT-23-5
WDFN-6L 2x2
MSOP-8

Features

Ultra Low Noise for RF Application
Ultra Fast Response in Line/Load Transient
Quick Start-Up (Typically 50 μ s)
<0.01 μ A Standby Current When Shutdown
Low Dropout : 220mV @ 300mA
Wide Operating Voltage Ranges : 2.5V to 5.5V
TTL-Logic-Controlled Shutdown Input
Low Temperature Coefficient
Current Limiting Protection
Thermal Shutdown Protection
Only 1 μ F Output Capacitor Required for Stability
High Power Supply Rejection Ratio
Custom Voltage Available
RoHS Compliant and 100% Lead (Pb)-Free

Applications

CDMA/GSM Cellular Handsets
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
PCMCIA Cards
Portable Information Appliances

Pin Configuration

RT9193-33 Pinout

Package: SC-70-5 (SOT-23-5)

Pin Number	Pin Name	Type	Description
1	VIN	P	Input Supply Voltage
2	GND	P	Ground
3	EN	I	Enable Control
4	BP	I	Bypass/Feedback
5	VOUT	O	Output Voltage (3.3V)

Notes

RT9193-33 is a 3.3V LDO regulator in SC-70-5 (SOT-23-5) package
Pin numbers extracted from the package diagram (authoritative source)
BP pin is typically connected to VOUT for fixed output voltage operation, or to a feedback divider for adjustable configurations
EN pin is active-high; tie to VIN or VOUT for always-on operation

Electrical Characteristics

(VIN = VOUT + 1V, CIN = COUT = 1 μ F, CBP = 22nF, TA = 25°C, unless otherwise specified)

Parameter	Symbol	Test Conditions	Min	Typ	Max	Unit
Output Voltage Accuracy	V OUT	I OUT = 1mA	2	--	2	%
Current Limit	I LIM	R LOAD = 1	360	400	--	mA
Quiescent Current	I Q	V EN 1.2V, I OUT =0mA	--	90	130	A
Dropout Voltage (Note 5)	V DROP	I OUT = 200mA, V OUT > 2.8V		170	200	mV
	V DROP	I OUT = 300mA, V OUT > 2.8V	--	220	300	mV
Line Regulation	V LINE	V IN = (V OUT + 1V) to 5.5V, I OUT = 1mA	--	--	0.3	%
Load Regulation	V LOAD	1mA I OUT 300mA	--	--	0.6	%
Standby Current	I STBY	V EN = GND, Shutdown	--	0.01	1	A

Absolute Maximum Ratings

Thermal Information

Thermal protection limits power dissipation in RT9193. When the operation junction temperature exceeds 165 ° C, the OTP circuit starts the thermal shutdown function turn the pass element off. The pass element turn on again after the junction temperature cools by 30 ° C.

For continue operation, do not exceed absolute maximum operation junction temperature 125 ° C. The power dissipation definition in device is :

The maximum power dissipation depends on the thermal resistance of IC package, PCB layout, the rate of surroundings airflow and temperature difference between junction to ambient. The maximum power dissipation can be calculated by following formula :

Where TJ(MAX) is the maximum operation junction temperature 125 ° C, TA is the ambient temperature and the θ JA is the junction to ambient thermal resistance.

For recommended operating conditions specification of RT9193, where TJ(MAX) is the maximum junction temperature of the die (125 ° C) and TA is the maximum ambient temperature. The junction to ambient thermal resistance ( θ JA is layout dependent) for TSOT-23-5/ SOT-23-5 package is 250 ° C/W, SC-70-5 package is 333 ° C/W, WDFN-6L 2x2 package is 165 ° C/W and MSOP8 package is 160 ° C/W on standard JEDEC 51-3 thermal test board. The maximum power dissipation at TA = 25 ° C can be calculated by following formula :

PD(MAX) = (125 ° C -25 ° C) / 333 = 300mW for

SC-70-5

PD(MAX) = (125 ° C -25 ° C) / 250 = 400mW for

TSOT-23-5/SOT-23-5

PD(MAX) = (125 ° C -25 ° C) / 165 = 606mW for

WDFN-6L 2x2

PD(MAX) = (125 ° C -25 ° C) / 160 = 625mW for

MSOP-8

The maximum power dissipation depends on operating ambient temperature for fixed TJ(MAX) and thermal resistance θ JA. For RT9193 packages, the Figure 2 of derating curves allows the designer to see the effect of rising ambient temperature on the maximum power allowed.

Figure 2. Derating Curve for Packages

Typical Application

Ordering Information

MPN	Package	Temperature Range	Packing
RT9193-U533P	SC-70-5
RT9193-U533G	SC-70-5
RT9193-B33P	SOT-23-5
RT9193-B33G	SOT-23-5
RT9193-J533P	TSOT-23-5
RT9193-J533G	TSOT-23-5
RT9193-QW33P	WDFN-6L 2x2 (W-Type)
RT9193-QW33G	WDFN-6L 2x2 (W-Type)
RT9193-F33P	MSOP-8
RT9193-F33G	MSOP-8

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
RT9193	Richtek	—

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Supply Input Voltage ----------------------------------------------------------------------------------------------------	Supply Input Voltage ----------------------------------------------------------------------------------------------------
PowerDissipation,P D @T A = 25 ° C	PowerDissipation,P D @T A = 25 ° C
SC-70-5 -------------------------------------------------------------------------------------------------------------------- 300mW	SC-70-5 -------------------------------------------------------------------------------------------------------------------- 300mW
TSOT-23-5/SOT-23-5 ---------------------------------------------------------------------------------------------------- 400mW	TSOT-23-5/SOT-23-5 ---------------------------------------------------------------------------------------------------- 400mW
WDFN-6L2x2------------------------------------------------------------------------------------------------------------- 606mW	WDFN-6L2x2------------------------------------------------------------------------------------------------------------- 606mW
MSOP-8 ------------------------------------------------------------------------------------------------------------------- 625mW	MSOP-8 ------------------------------------------------------------------------------------------------------------------- 625mW
Package Thermal Resistance (Note 2)	Package Thermal Resistance (Note 2)
SC-70-5, θ JA --------------------------------------------------------------------------------------------------------------- 333 SC-70-5, θ --------------------------------------------------------------------------------------------------------------	SC-70-5, θ JA --------------------------------------------------------------------------------------------------------------- 333 SC-70-5, θ --------------------------------------------------------------------------------------------------------------
JC 200 ° C/W TSOT-23-5/SOT-23-5, θ JA ---------------------------------------------------------------------------------------------- 250 ° C/W	JC 200 ° C/W TSOT-23-5/SOT-23-5, θ JA ---------------------------------------------------------------------------------------------- 250 ° C/W
TSOT-23-5/SOT-23-5, θ JC ---------------------------------------------------------------------------------------------- 25 ° C/W	TSOT-23-5/SOT-23-5, θ JC ---------------------------------------------------------------------------------------------- 25 ° C/W
WDFN-6L2x2, θ JA ------------------------------------------------------------------------------------------------------- 165	WDFN-6L2x2, θ JA ------------------------------------------------------------------------------------------------------- 165
WDFN-6L 2x2, θ ------------------------------------------------------------------------------------------------------- 20 ° C/W	WDFN-6L 2x2, θ ------------------------------------------------------------------------------------------------------- 20 ° C/W
JC	JC
MSOP-8 θ JA --------------------------------------------------------------------------------------------------------------- 160	MSOP-8 θ JA --------------------------------------------------------------------------------------------------------------- 160
MSOP-8 θ JC -------------------------------------------------------------------------------------------------------------- 55	MSOP-8 θ JC -------------------------------------------------------------------------------------------------------------- 55
Junction Temperature --------------------------------------------------------------------------------------------------- 150	Junction Temperature --------------------------------------------------------------------------------------------------- 150
LeadTemperature (Soldering, 10 sec.) ----------------------------------------------------------------------------- 260	LeadTemperature (Soldering, 10 sec.) ----------------------------------------------------------------------------- 260
StorageTemperatureRange ------------------------------------------------------------------------------------------- - 65	StorageTemperatureRange ------------------------------------------------------------------------------------------- - 65
ESD Susceptibility (Note 3) HBM(HumanBodyModel) -------------------------------------------------------------------------------------------- 2kV	ESD Susceptibility (Note 3) HBM(HumanBodyModel) -------------------------------------------------------------------------------------------- 2kV
MM(Machine Model)---------------------------------------------------------------------------------------------------- 200V	MM(Machine Model)---------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)	Recommended Operating Conditions (Note 4)
Supply Input Voltage ----------------------------------------------------------------------------------------------------	2.5V to 5.5V
ENInput Voltage --------------------------------------------------------------------------------------------------------- JunctionTemperatureRange ------------------------------------------------------------------------------------------	0V to 5.5V - 40 ° Cto125 ° C
AmbientTemperatureRange ------------------------------------------------------------------------------------------	- 40 ° Cto 85 ° C