RT9193 Regulator Datasheet

RT9193 Datasheet, PDF, Equivalent


Part Number

RT9193

Description

Ultra-Fast CMOS LDO Regulator

Manufacture

Richtek Technology

Total Page 14 Pages
Datasheet
Download RT9193 Datasheet


RT9193
®
RT9193
300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator
General Description
The RT9193 is designed for portable RF and wireless
applications with demanding performance and space
requirements. The RT9193 performance is optimized for
battery-powered systems to deliver ultra low noise and
low quiescent current. A noise bypass pin is available for
further reduction of output noise. Regulator ground current
increases only slightly in dropout, further prolonging the
battery life. The RT9193 also works with low-ESR ceramic
capacitors, reducing the amount of board space necessary
for power applications, critical in hand-held wireless
devices. The RT9193 consumes less than 0.01μA in
shutdown mode and has fast turn-on time less than 50μs.
The other features include ultra low dropout voltage, high
output accuracy, current limiting protection, and high ripple
rejection ratio. Available in the SC-70-5, SOT-23-5,
TSOT-23-5, WDFN-6L 2x2 and MSOP-8 packages.
Ordering Information
RT9193-
Package Type
U5 : SC-70-5
B : SOT-23-5
J5 : TSOT-23-5
QW : WDFN-6L 2x2 (W-Type)
F : MSOP-8
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Output Voltage
15 : 1.5V
16 : 1.6V
:
49 : 4.9V
50 : 5.0V
1H : 1.85V
2H : 2.85V
4G : 4.75V
(1.5V to 5V with 0.1V step is available)
Note :
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Features
z Ultra Low Noise for RF Application
z Ultra Fast Response in Line/Load Transient
z Quick Start-Up (Typically 50μs)
z <0.01μA Standby Current When Shutdown
z Low Dropout : 220mV @ 300mA
z Wide Operating Voltage Ranges : 2.5V to 5.5V
z TTL-Logic-Controlled Shutdown Input
z Low Temperature Coefficient
z Current Limiting Protection
z Thermal Shutdown Protection
z Only 1μF Output Capacitor Required for Stability
z High Power Supply Rejection Ratio
z Custom Voltage Available
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z CDMA/GSM Cellular Handsets
z Battery-Powered Equipment
z Laptop, Palmtops, Notebook Computers
z Hand-Held Instruments
z PCMCIA Cards
z Portable Information Appliances
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Typical Application Circuit
VIN
CIN
1µF/X7R
Chip Enable
RT9193
VIN VOUT
GND
EN
BP
VOUT
COUT
1µF/X7R
CBP
22nF
(Option for low noise)
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
DS9193-16 January 2013
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1

RT9193
RT9193
Pin Configurations
VOUT
5
BP
4
23
VIN GND EN
SC-70-5/SOT-23-5/TSOT-23-5
(TOP VIEW)
EN 1
GND 2
VIN 3
6 BP
5 NC
7 4 VOUT
WDFN-6L 2x2
NC
VIN
NC
VOUT
8
27
36
45
MSOP-8
NC
EN
BP
GND
Functional Pin Description
Pin Name
Pin Function
EN
Chip Enable (Active High). Note that this pin is high impedance. There should be a pull low 100kΩ
resistor connected to GND when the control signal is floating.
BP
Reference Noise Bypass. This pin can be floating. For lowest noise performance, connect a 22nF
capacitor between the BP and GND pins.
GND
Ground.
VOUT
Output Voltage.
VIN Power Input Voltage.
Function Block Diagram
EN Shutdown
Quick
and
Start
Logic Control
BP VREF
+
Error
Amplifier
MOSFET
Driver
Current-Limit
and
Thermal
Protection
VIN
VOUT
GND
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS9193-16 January 2013


Features ® RT9193 300mA, Ultra-Low Noise, Ultra -Fast CMOS LDO Regulator General Descr iption The RT9193 is designed for porta ble RF and wireless applications with d emanding performance and space requirem ents. The RT9193 performance is optimiz ed for battery-powered systems to deliv er ultra low noise and low quiescent cu rrent. A noise bypass pin is available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolongin g the battery life. The RT9193 also wor ks with low-ESR ceramic capacitors, red ucing the amount of board space necessa ry for power applications, critical in hand-held wireless devices. The RT9193 consumes less than 0.01μA in shutdown mode and has fast turn-on time less tha n 50μs. The other features include ult ra low dropout voltage, high output acc uracy, current limiting protection, and high ripple rejection ratio. Available in the SC-70-5, SOT-23-5, TSOT-23-5, W DFN-6L 2x2 and MSOP-8 packages. Ordering Information RT9193- .
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