power-management-pmic

RT9193-33

Full part number: RT9193-33GB

Key datasheet specifications and the closest alternatives, ranked by parametric similarity and grounded in the manufacturer datasheet.

01 — Overview

This datasheet covers the RT9193, a 300mA ultra-low noise CMOS LDO regulator. It is designed for portable RF and battery-powered applications requiring fast response and low quiescent current. Key parameters include 220mV dropout voltage at 300mA, an operating input range of 2.5V to 5.5V, and less than 0.01μA shutdown current. The device supports TTL logic control, features thermal and current limiting protection, and requires only a 1μF output capacitor for stability. It is available in SC-70-5, SOT-23-5, TSOT-23-5, WDFN-6L, and MSOP-8 packages.

02 — Key specifications

Datasheet parameters

ParameterMinTypMaxConditions
quiescent current — 90 µA 130 µA VEN≥ 1.2V, IOUT = 0mA
output voltage — 3.3 V —
output current — 300 mA —
supply voltage range 2.5 V — 5.5 V
operating temperature -40 °C — 85 °C
input bias current — 0 A 100 nA VEN = GND or VIN
standby current — 10 nA 1 µA VEN = GND, Shutdown
psrr — -70 dB — COUT = 1µF, IOUT = 10mA
dropout voltage — 170 mV 200 mV IOUT = 200mA, VOUT> 2.8V
output noise voltage — 100 µV — 10Hz to 100kHz, IOUT = 200mACOUT = 1µF
output count — 1 —
03 — Alternatives

Closest matches to RT9193-33

AP2112-1.2 5.9× higher dropout voltage, 2.8× lower output voltage, 2.0× higher output current
AP2127K-3.3TRG1 10.0× higher standby current, 8.2× higher dropout voltage, 1.7× lower output noise voltage
SPX5205M5-L-5.0 5.0× higher standby current, 3.0× higher output noise voltage, 2.3× higher supply voltage range
LP5907 10.0× lower output noise voltage, 7.5× lower quiescent current, 2.4× lower output current
TLV758P 10.0× higher standby current, 4.2× higher dropout voltage, 3.6× lower quiescent current
L78M05ABV 11.8× higher dropout voltage, 3.4× higher supply voltage range, 2.5× lower output noise voltage
SPX3819M5-L 10.0× lower supply voltage range, 5.0× higher standby current, 3.0× higher output noise voltage
AZ1117D-3.3TRE1 6.8× higher dropout voltage, 3.8× higher supply voltage range, 3.3× higher output current
04 — FAQ

Frequently asked questions

What is the dropout voltage of the RT9193-33GB when IOUT = 200mA and VOUT> 2.8V?

The dropout voltage is 170 mV.

What is the input bias current when VEN = GND or VIN?

The input bias current is 0 A when VEN = GND or VIN.

What is the maximum operating temperature for the RT9193-33GB?

The operating temperature is 85 °C.

What is the output count for the RT9193-33GB?

The output count is 1.

What is the output current of the RT9193-33GB?

The output current is 300 mA.

What is the output noise voltage of the RT9193-33GB?

The output noise voltage is 100 µV at 10Hz to 100kHz with IOUT = 200mA and COUT = 1µF.

What is the output voltage of the RT9193-33GB?

The output voltage is 3.3 V.

What is the PSRR of the RT9193-33GB when COUT = 1µF and IOUT = 10mA?

The PSRR is -70 dB when COUT = 1µF and IOUT = 10mA.

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