power management pmic

RT9078N-08

Full part number: RT9078N-08GJ5

Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.

00 — Overview

What the RT9078N-08 does

The RT9078x family comprises low-dropout linear regulators delivering up to 300mA output current with a 1.2V to 5.5V input range. These devices feature a 2μA ground current at no load, 75dB PSRR at 1kHz, and a dropout voltage of 0.15V at 300mA. The series supports fixed outputs from 0.8V to 3.45V or adjustable voltages between 0.8V and 5V. Available in TSOT-23-5 and ZQFN-4L 1x1 packages, the RT9078x includes an enable function and output discharge capability. Ideal for portable battery-powered equipment, ultra-low power microcontrollers, and notebook computers, the regulator offers current limit protection and over-temperature safeguards to ensure reliable operation in diverse applications.

Next step
Start building with RT9078N-08 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.
01 — Key specifications

Datasheet parameters

Datasheet parameters for RT9078N-08
ParameterMinTypMaxConditionsSource
quiescent current — 2 µA 4 µA ILOAD = 0mA, VOUT≤ 5.5VVIN≥ VOUT+ VDROP; vccconsumpti; Electrical Characteristics Richtek datasheet, p. 5 — Electrical Characteristics
output voltage — 46 µV — COUT = 1μF, ILOAD = 150mA, BW = 10Hz to100kHz, VIN = VOUT+ 1V; VOUT = 1.2V; Electrical Characteristics Richtek datasheet, p. 6 — Electrical Characteristics
supply voltage range 1.2 V — 5.5 V Richtek datasheet, p. 5
operating temperature -40 °C — 125 °C Richtek datasheet, p. 5
standby current — 100 nA — VEN = 0V Richtek datasheet, p. 6 — Electrical Characteristics
psrr — 75 dB — VIN = 3V, ILOAD = 50mA, COUT = 1μF, VOUT = 2.5V, f = 1kHz; Electrical Characteristics Richtek datasheet, p. 6 — Electrical Characteristics
dropout voltage — 160 mV 200 mV 1.8V ≤ VOUT< 2.1V; (note 6); Electrical Characteristics Richtek datasheet, p. 5 — Electrical Characteristics
output count — 1 — Richtek datasheet, p. 1
02 — Alternatives

Closest matches to RT9078N-08

RT9080 3.7× lower supply voltage range, 1.9× lower operating temperature, 1.8× higher output current
TLV758P 12.5× higher quiescent current, 1.5× lower psrr, 1.4× higher output voltage
AP2112 10.0× lower standby current, 1.9× lower operating temperature, 1.8× lower output voltage
AP2127-3.3 2.0× higher dropout voltage, 1.9× lower operating temperature, 1.6× higher output voltage
AP2127-1.0 2.1× lower output voltage, 2.0× higher dropout voltage, 1.9× lower operating temperature
TLV757P 12.5× higher quiescent current, 6.7× lower standby current, 2.6× higher output current
AZ1117C-3.3 4.5× higher supply voltage range, 1.7× higher dropout voltage, 1.7× higher output current
LD1117-3.3 5.4× higher supply voltage range, 1.8× lower output voltage, 1.4× higher dropout voltage
03 — FAQ

Frequently asked questions

What is the dropout voltage for the RT9078N-08GJ5 when 1.8V ≤ VOUT< 2.1V?

The dropout voltage is 160 mV.

What is the maximum operating temperature for the RT9078N-08GJ5?

The maximum operating temperature is 125 °C.

What is the output count of the RT9078N-08GJ5?

The output count is 1.

What is the output voltage specification for the RT9078N-08GJ5 when COUT = 1μF, ILOAD = 150mA, BW = 10Hz to100kHz, VIN = VOUT+ 1V, and VOUT = 1.2V?

The output voltage is 46 µV.

What is the PSRR of the RT9078N-08GJ5 at VIN = 3V, ILOAD = 50mA, COUT = 1μF, VOUT = 2.5V, and f = 1kHz?

The PSRR is 75 dB.

What is the quiescent current when ILOAD = 0mA, VOUT≤ 5.5VVIN≥ VOUT+ VDROP; vccconsumpti?

The quiescent current is 2 µA.

What is the standby current when VEN = 0V?

The standby current is 100 nA when VEN = 0V.

What is the supply voltage range for the RT9078N-08GJ5?

The supply voltage range is 5.5 V.

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