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RT9009GMS5

P1-P3P4-P6P7-P9
RT9009
1
DS9009-01 April 2011 www.richtek.com
Pin Configurations
Applications
Game Console
CDMA/GSM Cellular Handsets
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
Mini PCI & PCI-Express Cards
PCMCIA & New Cards
Portable Information Appliances
2.5A, Ultra-Low Dropout, Ultra-Fast CMOS LDO Regulator
Ordering Information
General Description
The RT9009 is a high performance, 2.5A LDO regulator,
offering extremely high PSRR and ultra-low dropout. Ideal
for portable RF and wireless applications with demanding
performance and space requirements.
Regulator ground current increases only slightly in dropout,
further prolonging the battery life. The RT9009 also works
with low-ESR ceramic capacitors, reducing the amount of
board space necessary for power applications that is critical
in hand-held wireless devices.
The RT9009 consumes less than 1μA in shutdown mode
and has fast turn-on time of less than 400μs. The other
features include ultra-low dropout voltage, high output
accuracy, current limiting protection, and high ripple
rejection ratio. The RT9009 is available in the TO-263S-5
package.
(TOP VIEW)
TO-263S-5
Features
Ultra Fast Response in Line/Load Transient
< 1
μμ
μμ
μA Shutdown Current
Low Dropout : 520mV at 2A
Wide Operating Voltage Ranges : 2.5V to 5.5V
TTL-Logic-Controlled Shutdown Input
Current Limiting Protection
Thermal Shutdown Protection
Low-ESR Ceramic Output Capacitor Required for
Stability
High Power Supply Rejection Ratio
RoHS Compliant and 100% Lead (Pb)-Free
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.
4
2
3
5
1
GND
ADJ
VOUT (TAB)
EN
VIN
RT9009
Package Type
MS5 : TO-263S-5
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
RT9009
2
DS9009-01 April 2011www.richtek.com
Typical Application Circuit
Function Pin Description
Figure 1. Adjustable Operation
Note: The value of R2 should be less than 80k to
maintain regulation.
Pin No. Pin Name
Pin Function
1 VIN Power Supply Input.
2 EN
Chip Enable (Active High). When the EN goes to a logic low, the device will be
shutdown.
3 VOUT Regulator Output.
4 ADJ
Output Voltage Feedback Input. If external feedback resistors are applied, the output
voltage will be :
V
OUT
= 1.25 × (1+ ) Volts
5 GND Ground.
2
1
R
R
Function Block Diagram
OUT
R1
V = 1.25 x (1+ ) Volts
R2
VIN
GND
VOUT
RT9009
C
OUT
4.7uF
2.2uF
ADJ
EN
C
IN
V
IN
V
OUT
R1
R2
Chip Enable
1
2
3
4
5
EN
VIN
VOUT
ADJ
GND
Logic Control
POR/OCP/OTP
V
REF
+
-
Driver
RT9009
3
DS9009-01 April 2011 www.richtek.com
Absolute Maximum Ratings (Note 1)
Supply Input Voltage ------------------------------------------------------------------------------------------------ 6V
EN Input Voltage ----------------------------------------------------------------------------------------------------- 6V
Power Dissipation, P
D
@ T
A
= 25°C
TO-263S-5 ------------------------------------------------------------------------------------------------------------- 3.448W
Package Thermal Resistance (Note 2)
TO-263S-5, θ
JA
------------------------------------------------------------------------------------------------------- 29°C/W
TO-263S-5, θ
JC
------------------------------------------------------------------------------------------------------- 7°C/W
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------- 260°C
Junction Temperature ----------------------------------------------------------------------------------------------- 150°C
Storage Temperature Range --------------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 3)
HBM -------------------------------------------------------------------------------------------------------------------- 2kV
MM---------------------------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
Supply Input Voltage ------------------------------------------------------------------------------------------------ 2.5V to 5.5V
EN Input Voltage ----------------------------------------------------------------------------------------------------- 0V to 5.5V
Junction Temperature Range -------------------------------------------------------------------------------------- −40°C to 125°C
Ambient Temperature Range -------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
Parameter Symbol Test Conditions Min Typ Max Unit
Input Voltage V
IN
2.5 -- 5.5 V
Output Voltage Range
(Adjustable)
V
OUT_Adj
1.25 -- 4.5 V
Quiescent Current I
Q
V
EN
≥ V
IH
, I
OUT
= 0mA -- 380 500 μA
Shutdown Current I
STBY
V
EN
≤ V
IL
,V
IN
= 3.3V -- 0.1 1 μA
Current Limit I
LIM
2.6 3.2 -- A
Dropout Voltage V
DROP
V
OUT
= 2.8V, I
OUT
= 2A -- 520 790 mV
Load Regulation ΔV
LOAD
10mA < I
OUT
< 2A -- 0.4 2 %
Line Regulation ΔV
LINE
V
IN
= 2.5V to 5.5V, I
OUT
= 5mA -- -- 1 %
Logic-Low Voltage V
IL
-- -- 0.6
EN Threshold
Logic-High Voltage V
IH
1.8 -- --
V
Enable Pin Current I
EN
Enable -- 0.1 1 μA
Power Supply Rejection Rate PSRR I
OUT
= 300mA, f = 100Hz -- 60 -- dB
Thermal Shutdown Temperature T
SD
-- 155 --
Thermal Shutdown Hysteresis ΔT
SD
-- 30 --
°C
ADJ
Reference Voltage Tolerance V
REF
1.225 1.25 1.275 V
ADJ Pin Current I
ADJ
V
ADJ
=
V
REF
-- 10 100 nA
(V
IN
= 3.3V, V
EN
= V
IN
, C
IN
= 2.2μF (Ceramic), C
OUT
= 4.7μF (Ceramic), T
A
= 25°C unless otherwise specified)
P1-P3P4-P6P7-P9

RT9009GMS5

Mfr. #:
Buy RT9009GMS5
Manufacturer:
Description:
IC REG LIN POS ADJ 2.5A TO263S-5
Lifecycle:
New from this manufacturer.
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