RT9198-18GJ5 Richtek USA Inc, RT9198-18GJ5 Datasheet

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RT9198-18GJ5

Manufacturer Part Number
RT9198-18GJ5
Description
IC REG LDO 1.8V 300MA TSOT23-5
Manufacturer
Richtek USA Inc
Datasheet

Specifications of RT9198-18GJ5

Regulator Topology
Positive Fixed
Voltage - Output
1.8V
Voltage - Input
2.5 V ~ 5.5 V
Voltage - Dropout (typical)
0.22V @ 300mA
Number Of Regulators
1
Current - Output
300mA (Max)
Current - Limit (min)
360mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5 Thin, TSOT-23-5
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
300mA, Low Noise, Ultra-Fast CMOS LDO Regulator
General Description
The RT9198/A is designed for portable RF and wireless
applications with demanding performance and space
requirements. The RT9198/A performance is optimized for
battery-powered systems to deliver ultra low noise and
low quiescent current. Regulator ground current increases
only slightly in dropout, further prolonging the battery life.
The RT9198/A also works with low-ESR ceramic
capacitors, reducing the amount of board space necessary
for power applications, critical in hand-held wireless
devices. The RT9198/A consumes less than 0.01uA in
shutdown mode and has fast turn-on time less than 50us.
The other features include ultra low dropout voltage, high
output accuracy, current limiting protection, and high ripple
rejection ratio. Available in the SOT-23-3, SOT-23-5,
TSOT-23-3, TSOT-23-5, SC-70-5, SC-82, MSOP-8 and
WDFN-6L 2x2 packages, the RT9198/A also offers a range
from 1.5V to 5.0V with 0.1V per step.
Features
Applications
DS9198/A-13 June 2009
Low-Noise for RF Application
Fast Response in Line/Load Transient
Quick Start-Up (Typically 50us)
< 0.01uA Standby Current When Shutdown
Low Dropout : 220mV @
Wide Operating Voltage Ranges : 2.5V to 5.5V
TTL-Logic-Controlled Shutdown Input
Low Temperature Coefficient
Current Limiting Protection
Thermal Shutdown Protection
Only 1uF Output Capacitor Required for Stability
High Power Supply Rejection Ratio
Custom Voltage Available
RoHS Compliant and 100% Lead (Pb)-Free
CDMA/GSM Cellular Handsets
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
PCMCIA Cards
Portable Information Appliances
300mA
Ordering Information
Note :
Richtek Pb-free and Green products are :
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area, otherwise visit our website for detail.
RT9198/A-
RoHS compliant and compatible with the current require-
Suitable for use in SnPb or Pb-free soldering processes.
ments of IPC/JEDEC J-STD-020.
Package Type
U5 : SC-70-5
U5R : SC-70-5 (R-Type)
Y : SC-82
V : SOT-23-3
B : SOT- 23-5
BR : SOT- 23-5 (R-Type)
BG : SOT- 23-5 (G-Type)
J3 : TSOT- 23-3
J5 : TSOT- 23-5
J5R : TSOT- 23-5 (R-Type)
J5G : TSOT- 23-5 (G-Type)
F : MSOP-8
QW : WDFN-6L 2x2 (W-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
Output Voltage
15 : 1.5V
16 : 1.6V
49 : 4.9V
50 : 5.0V
1H : 1.85V
2H : 2.85V
4G : 4.75V
Chip Enable Function (Active Low)
Chip Enable Function (Active High)
:
cial Standard)
RT9198/A
www.richtek.com
1

Related parts for RT9198-18GJ5

RT9198-18GJ5 Summary of contents

Page 1

... The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. Available in the SOT-23-3, SOT-23-5, TSOT-23-3, TSOT-23-5, SC-70-5, SC-82, MSOP-8 and WDFN-6L 2x2 packages, the RT9198/A also offers a range from 1.5V to 5.0V with 0.1V per step. Features Low-Noise for RF Application ...

Page 2

... VOUT GND EN/EN TSOT-23-5/SOT-23-5/ SC-70-5 NC EN/ VIN VOUT 4 5 MSOP-8 RT9198 VIN VOUT 1uF Chip Enable EN GND On Off RT9198A VIN VOUT 1uF Chip Enable GND EN Off On NC VOUT GND VIN EN/EN TSOT-23-5/ SOT-23-5(G-Type) VIN VOUT GND EN/EN SC-82 V OUT C OUT 1uF ...

Page 3

... Ground. The exposed pad must be soldered to a large PCB and connected to GND for GND, Exposed Pad maximum power dissipation. VOUT Output Voltage. VIN Input Voltage. Function Block Diagram EN/EN DS9198/A-13 June 2009 Shutdown and Logic Control V REF - MOS Driver Error Amplifier Current-Limit and Thermal Protection RT9198/A VIN VOUT GND www.richtek.com 3 ...

Page 4

... 200mA OUT V DROP I = 300mA OUT 1V) to 5.5V, IN OUT ΔV LINE I = 1mA OUT ΔV 1mA < I < 300mA LOAD OUT RT9198 GND, Shutdown EN I SHDN RT9198A GND or V IBEN EN IN Min Typ −2 -- 360 400 = 0mA OUT -- 90 = 0mA OUT -- 170 -- 220 -- -- -- -- -- 0 ...

Page 5

... Note 5. The dropout voltage is defined as V DS9198/A-13 June 2009 Symbol Test Conditions RT9198 5.5V, Shutdown RT9198A 5.5V, Enable IN RT9198 5.5V, Enable RT9198A 5.5V, Shutdown IN PSRR C = 1μ 100mA OUT OUT T SD Δ 25° low effective single layers thermal conductivity test board which is measured when V ...

Page 6

... J 0.15 0.2 0.25 0.3 Quiesent Current vs. Temperature 100 RT9198/A- 3. 1uF IN OUT -50 - Temperature (°C) Current Limit vs. Input Voltage 600 RT9198/A- 1uF IN OUT 550 500 450 400 350 300 2 2.5 3 3.5 4 4.5 Input Voltage (V) PSRR 2.5V OUT 1uF, X7R IN OUT 0 -20 -40 ...

Page 7

... Line Transient Response 1uF IN OUT -20 Time (100μs/Div) Load Transient Response 1uF IN OUT 100 -50 Time (100μs/Div) Start Up RT9198-18 1uF IN OUT Time (10μs/Div) DS9198/A-13 June 2009 I = 50mA LOAD V = 1.5V OUT I = 1mA to 50mA LOAD V = 1.8V OUT I = 1mA LOAD RT9198/A Line Transient Response ...

Page 8

... RT9198/A Noise 1uF IN OUT 400 200 0 -200 -400 Time (5ms/Div) www.richtek.com 1.8V OUT I = 150mA LOAD 400 200 -200 -400 f = 10Hz to 100kHz Noise 1uF IN OUT 10Hz to 100kHz Time (5ms/Div) DS9198/A-13 June 2009 V = 1.8V OUT No Load ...

Page 9

... EN turn on control level must be lower than 0.4V to assure the RT9198A LDO regulator switch on. The RT9198A LDO regulator will go into shutdown mode when the voltage on the EN pin is higher than 1.2 V. The RT9198A equips a quick-discharge function to protect the system. When the regulator is turned off by EN pin, the internal MOSFET between V discharge output voltage quickly ...

Page 10

... P D(MAX) The maximum power dissipation depends on operating ambient temperature for fixed T resistance θ . For RT9198/A packages, the Figure derating curves allows the designer to see the effect of rising ambient temperature on the maximum power allowed. 700 ...

Page 11

... SOT-23-3 Surface Mount Package RT9198 Dimensions In Inches Min Max 0.035 0.051 0.000 0.006 0.055 0.071 0.014 0.020 0.102 0.118 0.106 0.122 0.071 0.079 ...

Page 12

... RT9198/A Symbol www.richtek.com Dimensions In Millimeters Min Max 0.889 1.295 0.000 0.152 1.397 1.803 0.356 0.559 2.591 2.997 2.692 3.099 0.838 1.041 0.080 0.254 0.300 0.610 SOT-23-5 Surface Mount Package H L Dimensions In Inches Min Max 0.035 0.051 0.000 0.006 0.055 0.071 0.014 ...

Page 13

... TSOT-23-3 Surface Mount Package RT9198 Dimensions In Inches Min Max 0.028 0.039 0.000 0.004 0.055 0.071 0.012 0.020 0.102 0.118 0.106 0.122 0.071 0.079 ...

Page 14

... RT9198/A Symbol www.richtek.com Dimensions In Millimeters Min Max 0.700 1.000 0.000 0.100 1.397 1.803 0.300 0.559 2.591 3.000 2.692 3.099 0.838 1.041 0.080 0.254 0.300 0.610 TSOT-23-5 Surface Mount Package H L Dimensions In Inches Min Max 0.028 0.039 0.000 0.004 0.055 0.071 0.012 ...

Page 15

... Max 0.800 1.100 0.000 0.100 1.150 1.350 0.150 0.400 1.800 2.450 1.800 2.250 0.650 0.080 0.260 0.210 0.460 SC-70-5 Surface Mount Package RT9198 Dimensions In Inches Min Max 0.031 0.044 0.000 0.004 0.045 0.054 0.006 0.016 0.071 0.096 0.071 0.089 0.026 0.003 ...

Page 16

... RT9198/A Symbol www.richtek.com Dimensions In Millimeters Min Max 0.800 1.100 0.000 0.100 1.150 1.350 0.150 0.400 0.350 0.500 1.800 2.450 1.800 2.200 1.300 0.080 0.260 0.200 0.460 SC-82 Surface Mount Package H L Dimensions In Inches Min Max 0.031 0.043 0.000 0.004 0.045 0.053 ...

Page 17

... Max 0.810 1.100 0.000 0.150 0.750 0.950 0.220 0.380 2.900 3.100 0.650 4.800 5.000 2.900 3.100 0.400 0.800 8-Lead MSOP Plastic Package RT9198/A L Dimensions In Inches Min Max 0.032 0.043 0.000 0.006 0.030 0.037 0.009 0.015 0.114 0.122 0.026 0.189 0.197 0.114 ...

Page 18

... RT9198 Symbol Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 Information that is provided by Richtek Technology Corporation is believed to be accurate and reliable. Richtek reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. No third party intellectual property infringement of the applications should be guaranteed by users when integrating Richtek products into any application ...

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