RT9183-25GL Richtek USA Inc, RT9183-25GL Datasheet

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RT9183-25GL

Manufacturer Part Number
RT9183-25GL
Description
IC REG LDO 2.5V 1.5A TO252
Manufacturer
Richtek USA Inc
Datasheet

Specifications of RT9183-25GL

Regulator Topology
Positive Fixed
Voltage - Output
2.5V
Voltage - Input
Up to 5.5V
Voltage - Dropout (typical)
0.33V @ 1.5A
Number Of Regulators
1
Current - Output
1.5A (Max)
Current - Limit (min)
2A
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-252-3, DPak (2 Leads + Tab), SC-63
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Ultra Low Dropout 1.5A Linear Regulator
General Description
The RT9183 series are high performance linear voltage
regulators that provide ultra low-dropout voltage, high output
current with low ground current. It operates from an input
of 2.3V to 5.5V and provides output current up to 1.5A
thus is suitable to drive digital circuits requiring low voltage
at high currents.
The RT9183 has superior regulation over variations in line
and load. Also it provides fast respond to step changes in
load. Other features include over-current and over-
temperature protection. The adjustable version has enable
pin to reduce power consumption in shutdown mode.
The devices are available in fixed output voltages of 1.2V
to 3.3V with 0.1V per step and as an adjustable device
with a 0.8V reference voltage. The RT9183 regulators are
available in 3-lead SOT-223 and TO-263 packages (fixed
output only for the 3-lead option). Also available are 5-lead
TO-263, TO-252 and
external resistors to set the output voltage ranges from
0.8V to 4.5V.
Applications
DS9183-16 February 2011
Battery-Powered Equipment
Mother Board/Graphic Card
Peripheral Cards
PCMCIA Card
fused SOP-8 packages with two
Features
Ordering Information
Note :
Richtek Pb-free and Green products are :
RT9183
330mV Dropout @ 1.5A
380μ μ μ μ μ A Low Ground Pin Current
Excellent Line and Load Regulation
0.1μ μ μ μ μ A Quiescent Current in Shutdown Mode
Guaranteed 1.5A Output Current
Fixed Output Voltages : 1.2V to 3.3V
Adjustable Output Voltage from 0.8V to 4.5V
Over-Temperature/Over-Current Protection
RoHS Compliant and 100% Lead (Pb)-Free
ments of IPC/JEDEC J-STD-020.
RoHS compliant and compatible with the current require-
Suitable for use in SnPb or Pb-free soldering processes.
-
Package Type
G : SOT-223
GF : SOT-223 (F-Type)
S : SOP-8
L: TO-252
LF : TO-252 (F-Type)
M : TO-263
M5 : TO-263-5
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Output Voltage
Defauit : Adjustable
12 : 1.2V
13 : 1.3V
32 : 3.2V
33 : 3.3V
Only for SOP-8 and TO-263-5
H : Chip Enable High
L : Chip Enable Low
:
RT9183
www.richtek.com
1

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RT9183-25GL Summary of contents

Page 1

... The RT9183 has superior regulation over variations in line and load. Also it provides fast respond to step changes in load. Other features include over-current and over- temperature protection ...

Page 2

... VOUT VIN (TAB) SOT-223 (F-Type VIN VOUT GND(TAB) TO-263 (SOT-223 & TO-263 & TO-252) RT9183 VIN VOUT = 3.3V GND C IN 10µF Figure 1. 3.3V to 2.5V Regulator (SOP-8 & TO-263-5) RT9183 V VIN VOUT IN EN ADJ GND 10µF 0.1µ × 0.8 (1 )Volts OUT R2 Figure 2 ...

Page 3

... TO-263-5) RT9183 V VIN VOUT IN EN GND ADJ 0.1µF 10µF Pin Function = 0.8 × Volts OUT R 2 Current Limit Sensor Error Amplifier 0.8V - Reference + Shutdown Thermal Logic Shutdown - + Output Mode Comparator V OUT C OUT 10µ VOUT ADJ 100mV GND RT9183 www.richtek.com 3 ...

Page 4

... RT9183 Absolute Maximum Ratings Supply Input Voltage ------------------------------------------------------------------------------------------------------ 6V Package Thermal Resistance (Note 2) SOT-223, θ ---------------------------------------------------------------------------------------------------------------- 115°C/W JA SOT-223, θ --------------------------------------------------------------------------------------------------------------- 15°C/W JC SOT-223 (F-Type), θ ---------------------------------------------------------------------------------------------------- 135°C/W JA SOT-223 (F-Type), θ ---------------------------------------------------------------------------------------------------- 17°C/W JC SOP-8, θ ------------------------------------------------------------------------------------------------------------------ 125°C/W JA SOP-8, θ ------------------------------------------------------------------------------------------------------------------ 20°C/W JC TO-252, θ ----------------------------------------------------------------------------------------------------------------- 68°C/W JA TO-252, θ ----------------------------------------------------------------------------------------------------------------- 8°C/W JC TO-252 (F-Type), θ ...

Page 5

... V IN OUT for turning on. IH Min Typ 2 3.2 -- 110 -- 220 -- 330 < 5. 0.035 < 1. 170 -- (Note 9) 1 0.1 0.784 0 0.05 0 OUT OUT(NORMAL) RT9183 Max Unit 4.2 A 300 mV 400 500 0.18 %/ °C -- ° μA 1 0.816 V 100 nA 0 OUT − 100mV. www.richtek.com 5 ...

Page 6

... Quiescent Current vs. Temperature 400 380 360 340 ∞ 5V 320 10μF IN OUT (Ceramic,Y5V) 300 -50 - Temperature Current Limit vs. Temperature 5V 10μF(Ceramic,Y5V OUT 3.8 3.6 3.4 3.2 3 -50 - Temperature DS9183-16 February 2011 RT9183-25xG 75 100 125 ° RT9183-25xG 75 100 125 ° RT9183L-33xM5 75 100 125 ° ...

Page 7

... Load Current (A) Load Transient Response C = 47μF/Low ESR 1mA to 750mA OUT LOAD 1 0 -20 Time (100μs/Div) Load Transient Regulation RT9183-12xGF 20 0 500 1mA to 750mA C OUT LOAD Time (100μs/Div) RT9183 T = 125° -40°C J RT9183L-33xM5 1.2 1.5 RT9183H-18xS = 47μF/Low ESR www.richtek.com 7 ...

Page 8

... OUT V Off to On OUT 50 75 100 125 ° 100 125 ° Line Transient Response C = 47μF/Low ESR 100mA OUT LOAD -10 Time (100μs/Div) EN Pin Shutdown Response 10μF (Ceramic,Y5V) IN OUT I = 100mA 5V, T =25°C A LOAD Time (500μs/Div) DS9183-16 February 2011 RT9183H-18xS RT9183H-18xS ...

Page 9

... Output Capacitor The RT9183 is designed specifically to work with very small ceramic output capacitors. The recommended minimum capacitance (temperature characteristics X7R or X5R) are 10μF to 47μF range with 10mΩ to 25mΩ range ceramic capacitors between each LDO output and GND for transient stability, but it may be increased without limit ...

Page 10

... ESR is maximum. Thermal Considerations Thermal protection limits power dissipation in RT9183. When the operation junction temperature exceeds 170°C, the OTP circuit starts the thermal shutdown function and turns the pass element off. The pass element turns on again after the junction temperature cools by 30° ...

Page 11

... JEDEC 51-3 thermal test board. The maximum power dissipation depends on operating ambient temperature for fixed T J(MAX) θ . For RT9183 packages, the Figure 4 of derating curves JA allows the designer to see the effect of rising ambient temperature on the maximum power allowed. PCB Layout ...

Page 12

... RT9183 Adjustable Operation The adjustable version of the RT9183 has an output voltage range of 0.8V to 4.5V. The output voltage is set by the ratio of two external resistors as shown in Figure 2. The value of R2 should be less than 80k to maintain regulation. In critical applications, small voltage drop is caused by the resistance (R ...

Page 13

... SOT-223 Surface Mount Package RT9183 Dimensions In Inches Min Max 0.055 0.071 0.001 0.004 0.024 0.033 0.130 0.146 0.264 0.287 0.248 0.264 0.114 0.122 ...

Page 14

... RT9183 Symbol www.richtek.com Dimensions In Millimeters Min Max 4.801 5.004 3.810 3.988 1.346 1.753 0.330 0.508 1.194 1.346 0.170 0.254 0.050 0.254 5.791 6.200 0.400 1.270 8-Lead SOP Plastic Package H M Dimensions In Inches Min Max 0.189 0.197 0.150 0.157 0.053 0.069 0.013 ...

Page 15

... Dimensions In Inches Min Max 0.086 0.094 0.035 0.080 0.020 0.035 0.040 Ref. 0.018 0.023 0.018 0.023 0.250 0.265 0.205 0.215 0.210 0.245 0.083 0.096 0.370 0.410 0.020 Ref. 0.025 0.040 0.150 Ref. 0.120 Ref. 0.008 0.033 0.098 0.134 0.020 0.033 RT9183 www.richtek.com 15 ...

Page 16

... RT9183 Symbol www.richtek.com Dimensions In Millimeters Min Max 4.064 4.826 1.143 1.676 0.660 0.914 1.143 1.397 0.305 0.584 1.143 1.397 9.652 10.668 8.128 9.652 2.286 2.794 14.605 15.875 2.286 2.794 6.223 Ref. 7.620 Ref. 3-Lead TO- 263 Surface Mount U V Dimensions In Inches Min Max 0 ...

Page 17

... Ref. 7.620 Ref. 5-Lead TO-263 Plastic Surface Mount Package Richtek Technology Corporation Taipei Office (Marketing) 5F, No. 95, Minchiuan Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)86672399 Fax: (8862)86672377 Email: marketing@richtek.com RT9183 U V Dimensions In Inches Min Max 0.160 0.190 0.045 0.066 ...

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