OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

RT9199GSP

P1-P3P4-P6P7-P9P10-P12
RT9199
4
DS9199-11 April 2014www.richtek.com
©
Copyright 2014 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Functional Pin Description
VIN
Input voltage which supplies current to the output pin.
Connect this pin to a well-decoupled supply voltage. To
prevent the input rail from dropping during large load
transient, a large, low ESR capacitor is recommended to
use. The capacitor should be placed as close as possible
to the VIN pin.
GND (Exposed Pad)
Common Ground. The exposed pad must be soldered to
a large PCB and connected to GND for maximum power
dissipation.
VCNTL
VCNTL supplies the internal control circuitry and provides
the drive voltage. The driving capability of output current
is proportioned to the VCNTL. Connect this pin to 5V bias
supply to handle large output current with at least 1μF
capacitor from this pin to GND. An important note is that
VIN should be kept lower or equal to VCNTL.
Function Block Diagram
GND
VCNTL
REFEN
Current Limit
Thermal Protection
VOUT
EA
+
-
VIN
REFEN
Reference voltage input and active low shutdown control
pin. Two resistors dividing down the VIN voltage on the
pin to create the regulated output voltage. Pulling the pin
to ground turns off the device by an open-drain, such as
2N7002, signal N-MOSFET.
VOUT
Regulator output. VOUT is regulated to REFEN voltage
that is used to terminate the bus resistors. It is capable
of sinking and sourcing current while regulating the output
rail. To maintain adequate large signal transient response,
typical value of 1000μF Al electrolytic capacitor with 10μF
ceramic capacitors are recommended to reduce the effects
of current transients on VOUT.
RT9199
5
DS9199-11 April 2014 www.richtek.com
©
Copyright 2014 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Electrical Characteristics
(V
IN
= 1.8V/1.5V, V
CNTL
= 5V, V
REFEN
= 0.9V/0.75V, C
OUT
= 10μF (Ceramic), T
A
= 25°C, unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Input
VCNTL Operation Current I
CNTL
I
OUT
= 0A -- 1 2.5 mA
Standby Current (Note 5) I
STBY
V
REFEN
0.2V (Shutdown),
R
LOAD
= 180
-- 2 90 A
Output (DDR II)
Output Offset Voltage (Note 6) V
OS
I
OUT
= 0A 10 -- 10 mV
Load Regulation (Note 7) V
LOAD
V
IN
= 1.8V, V
REFIN
= 0.9V, I
OUT
= 1.8A 20 -- 20
mV
V
IN
= 1.5V, V
REFIN
= 0.75V, I
OUT
= 1.4A 10 -- 10
Protection
Current limit I
LIMIT
V
IN
= 1.8V, V
REFIN
= 0.9V 2 -- 3.5
A
V
IN
= 1.5V, V
REFIN
= 0.75V 1.5 -- 3.5
Thermal Shutdown Temperature T
SD
V
CNTL
= 5V 125 170 -- C
Thermal Shutdown Hysteresis T
SD
V
CNTL
= 5V -- 35 -- C
REFEN Shutdown
Shutdown Threshold
V
IH
Enable 0.6 -- --
V
V
IL
Shutdown -- -- 0.15
Absolute Maximum Ratings (Note 1)
Input Voltage, V
IN
---------------------------------------------------------------------------------------------------------- 6V
Control Voltage, V
CNTL
--------------------------------------------------------------------------------------------------- 6V
Power Dissipation, P
D
@ T
A
= 25°C
SOP-8 ----------------------------------------------------------------------------------------------------------------------- 0.909W
SOP-8 (Exposed Pad) -------------------------------------------------------------------------------------------------- 2.33W
Package Thermal Resistance (Note 2)
SOP-8, θ
JA
------------------------------------------------------------------------------------------------------------------ 110°C/W
SOP-8, θ
JC
------------------------------------------------------------------------------------------------------------------ 60°C/W
SOP-8 (Exposed Pad), θ
JA
---------------------------------------------------------------------------------------------- 42.9°C/W
SOP-8 (Exposed Pad), θ
JC
--------------------------------------------------------------------------------------------- 12.6°C/W
Junction Temperature ----------------------------------------------------------------------------------------------------- 125°C
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C
Storage Temperature Range -------------------------------------------------------------------------------------------- –65°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Model) ---------------------------------------------------------------------------------------------- 2kV
MM (Machine Model) ----------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
Input Voltage, V
IN
---------------------------------------------------------------------------------------------------------- 1.4V to 5.5V
Control Voltage, V
CNTL
--------------------------------------------------------------------------------------------------- 5V ± 5%
Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C
RT9199
6
DS9199-11 April 2014www.richtek.com
©
Copyright 2014 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in
the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may
affect device reliability.
Note 2. θ
JA
is measured in the natural convection at T
A
= 25°C on a high effective thermal conductivity test board (4 Layers,
2S2P) of JEDEC 51-7 thermal measurement standard. The case point of θ
JC
is on the exposed pad for package.
Note 3. Devices are ESD sensitive. Handling precaution recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Note 5. Standby current is the input current drawn by a regulator when the output voltage is disabled by a shutdown signal on
REFEN pin (V
IL
< 0.15V). It is measured with V
IN
= V
CNTL
= 5V.
Note 6. V
OS
offset is the voltage measurement defined as V
OUT
subtracted from V
REFEN
.
Note 7. Regulation is measured at constant junction temperature by using a 5ms current pulse. Devices are tested for load
regulation in the load range from 0A to 2A peak.
P1-P3P4-P6P7-P9P10-P12

RT9199GSP

Mfr. #:
Buy RT9199GSP
Manufacturer:
Description:
IC REG CONV DDR BUS 1OUT 8SOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet