RT9058
36V, 2A I , 100mA Low Dropout Voltage Linear Regulator
Q
General Description Features
2A Quiescent Current
The RT9058 is a low dropout (LDO) linear voltage regulator
2% Output Accuracy
that features high input voltage, low dropout voltage, ultra-
100mA Output Current
low operating current, and miniaturized packaging. With
3.5V to 36V Input Voltage Range
quiescent current as low as 2A, the RT9058 is ideal for
Dropout Voltage : 0.35V at 10mA/V 5V
CC
battery-powered equipment.
0.5V at 10mA/V 3.5V
CC
The RT9058's stability requirements are easily met with
Fixed Output Voltage : 2.5V, 3V, 3.3V, 5V, 6V, 9V,
all types of output capacitors, including tiny ceramic
12V
capacitors, over its wide input range (3.5V to 36V) and its
Stable with Ceramic or Tantalum Capacitors
load current range (0mA to 100mA). The RT9058 offers
Current Limit Protection
standard output voltages of 2.5V, 3V, 3.3V, 5V, 6V, 9V
Over Temperature Protection
and 12V.
SOT-23-3, SOT-89-3 Packages
RoHS Compliant and Halogen Free
Applications
Portable, Battery Powered Equipment
Ultra Low Power Microcontrollers
Notebook Computers
Pin Configurations
(TOP VIEW)
GND VCC
3 3
23
2 2
VCC VOUT GND VOUT
GND VOUT
VCC
SOT-23-3 SOT-23-3 (L-Type) SOT-89-3
Functional Pin Description
Pin No.
Pin Name Pin Function
SOT-23-3 SOT-23-3 (L-Type) SOT-89-3
1 3 1 VCC Supply Voltage Input.
2 2 3 VOUT Output of the Regulator.
3 1 2 GND Ground.
Simplified Application Circuit
RT9058
V VCC VOUT V
OUT
CC
C
C
IN OUT
GND
Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
DS9058-01 February 2016 www.richtek.com
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RT9058
Ordering and Marking Information
Output Marking Output Marking
Part Number Package Part Number Package
Voltage Information Voltage Information
RT9058-25GV SOT-23-3 00= RT9058-60GV SOT-23-3 0R=
RT9058-25GVL S2.5V OT-23-3 (L) 2A= RT9058-60GVL S6.0V OT-23-3 (L) 2D=
RT9058-25GX SOT-89-3 00= RT9058-60GX SOT-89-3 0D=
RT9058-30GV SOT-23-3 2H= RT9058-90GV SOT-23-3 0N=
RT9058-30GVL S3.0V OT-23-3 (L) 2G= RT9058-90GVL S9.0V OT-23-3 (L) 2E=
RT9058-30GX SOT-89-3 10= RT9058-90GX SOT-89-3 0C=
RT9058-33GV SOT-23-3 03= RT9058-C0GV SOT-23-3 0M=
RT9058-33GVL S3.3V OT-23-3 (L) 2B= RT9058-C0GVL S12.0V OT-23-3 (L) 2F=
RT9058-33GX SOT-89-3 01= RT9058-C0GX SOT-89-3 0B=
RT9058-50GV SOT-23-3 06=
RT9058-50GVL S5.0V OT-23-3 (L) 2C=
RT9058-50GX SOT-89-3 02=
Function Block Diagram
VCC VOUT
OCP
R1
-
OTP
GND
Bandgap
R2
Reference
Operation
The RT9058 is a high input voltage linear regulator
reference voltage and controls the P-MOSFET's gate
specifically designed to minimize external components.
voltage to maintain output voltage regulation.
The input voltage range is from 3.5V to 36V.
Current Limit Protection
The minimum required output capacitance for stable
The RT9058 provides a current limit function to prevent
operation is 1F effective capacitance after consideration
damage during output over-load or shorted-circuit
of the temperature and voltage coefficient of the capacitor.
conditions. The output current is detected by an internal
sensing transistor.
Output Transistor
The RT9058 includes a built-in low on-resistance
Over Temperature Protection
P-MOSFET output transistor for low dropout voltage
The over temperature protection function will turn off the
applications.
P-MOSFET when the internal junction temperature
exceeds 150C (typ.) and the output current exceeds 4mA.
Error Amplifier
Once the junction temperature cools down by
The Error Amplifier compares the output feedback voltage
approximately 20C, the regulator will automatically
from an internal feedback voltage divider to an internal
resume operation.
Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
www.richtek.com DS9058-01 February 2016
2