Richtek RT9010-12GJ6, RT9010-12PJ6, RT9010-13GJ6, RT9010-18PJ6, RT9010-25PJ6 Schematic [ru]

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RT9010
300mA LDO Regulator with POR
General Description
RT9010 is a low noise, and low dropout with the sourcing
ability up to 300mA and power-on reset function. The range
of output voltage is from 1.2V to 3.6V by operating from
2.5V to 5.5V input.
RT9010 offers 2% accuracy, extremely low dropout voltage
(240mV @ 300mA), and extremely low ground current.
The shutdown current is near zero current which is suitable
for battery-power devices. Other features include current
limiting, over temperature, output short circuit protection.
RT9010 is short circuit thermal folded back protected.
RT9010 lowers its OTP trip point from 165°C to 110°C
when output short circuit occurs (V
< 0.4V) providing
OUT
maximum safety to end users.
RT9010 can operate stably with very small ceramic output
capacitors, reducing required board space and component
cost. RT9010 is available in fixed output voltages in the
TSOT-23-6 package.
Ordering Information
RT9010-
Package Type J6 : TSOT-23-6
Operating Temperature Range P : Pb Free with Commercial Standard
Output Voltage 12 : 1.20V 13 : 1.30V : : 35 : 3.50V 36 : 3.60V 1H : 1.85V 2F : 2.65V 2H : 2.85V
Note :
RichTek Pb-free 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.
`100% matte tin (Sn) plating.
Features
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Wide Operating Voltage Ranges : 2.5V to 5.5V
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z Low-Noise for RF Application
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z No Noise Bypass Capa citor Required
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z Fast Response in Line/Load Transient
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z TTL-Logic-Controlled Shutdown Input
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z Low Temperature Coefficient
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z 300mA LDO Outputs
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z High Accuracy
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z Short Circuit Protection
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z Thermal Shutdown Protection
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z Current Limit Protection
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z Short Circuit Thermal Folded Back Protection
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z Tiny TSOT-23-6 Package
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z RoHS Compliant and 100% Lead (Pb)-Free
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±±
±2%
±±
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
Pin Configurations
(TOP VIEW)
VIN EN SET
4
56
23
1
VOUT GND
TSOT-23-6
Note : There is no pin1 indicator on top mark for TSOT-23-6
type, and pin 1 will be lower left pin when reading top mark
from left to right.
POR
Marking Information
For marking information, contact our sales representative
directly or through a RichTek distributor located in your
DS9010-00 April 2006 www.richtek.com
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RT9010
Typical Application Circuit
100K
V
IN
1uF
Chip Enable
6
VIN
RT9010
5
EN
42
SET
C
DELAY
Functional Pin Description
Pin No. Pin Name Pin Fun cti on
1 VOUT Output Voltage.
2 GND Common Ground.
3 POR
4 SET
5 EN Chip Enable (Active High).
Power-On Reset Output : Open-drain output. Active low indicates an output under voltage condition on regulator.
Delay Set Input. Connect external capacitor to GND to set the internal delay.
POR
VOUT
GND
3
1
1uF
POR
V
OUT
6 VIN Supply Input Voltage.
Function Block Diagram
EN
V
REF
Shutdown
and
Logic Control
-
+
Error
Amplifier
VIN
MOS Driver
VOUT
Current Limit
and
Thermal
Protection
GND
POR & DelaySET
DS9010-00 April 2006www.richtek.com
2
RT9010
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage ------------------------------------------------------------------------------------------------------ 0.3V to 6V
z Other I/O Pin Voltages --------------------------------------------------------------------------------------------------- 0.3V to 6V
z Power Dissipation, P
TSOT-23-6 ------------------------------------------------------------------------------------------------------------------- 0.455W
z Package Thermal Resistance (Note 4)
TSOT-23-6, θJA------------------------------------------------------------------------------------------------------------- 220°C/W
z Lead Temperature (Soldering, 10 sec.)------------------------------------------------------------------------------- 260°C
z Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C
z Storage Temperature Range -------------------------------------------------------------------------------------------- 65°C to 150°C
z ESD Susceptibility (Note 2)
HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 200V
Recommended Operating Conditions (Note 3)
z Supply Input Voltage ------------------------------------------------------------------------------------------------------ 2.5V to 5.5V
z Enable Input Voltage------------------------------------------------------------------------------------------------------ 0V to 5.5V z Junction Temperature Range -------------------------------------------------------------------------------------------- 40°C to 125°C z Ambient Temperature Range -------------------------------------------------------------------------------------------- 40°C to 85°C
@ T
D
= 25°C
A
Electrical Characteristics
(V
= V
OUT
+ 1V, V
IN
Parameter Symbol Test Conditions Min Typ Max Units
Input Voltage VIN V
Dropout Voltage (Note 5) V
Output Voltage Range V
Output Voltage Accuracy ΔV
Line Regulation ΔV
Load Regulation ΔV
Current Limit I
Quiescent Current IQ VEN > 1.5V -- 58 80 μA
Shutdown Current I
EN Threshold Voltage
Output Voltage TC -- 100 -- ppm/°C
= VIN, C
EN
Logic-High
Logic-Low V
= C
IN
= 1μF, TA = 25°C, unless otherwise specified.)
OUT
= 2.5V to 5.5V 2.5 -- 5.5 V
IN
I
DROP
1.2 -- 3.6 V
OUT
I
OUT
LINE
LOAD
R
LIM
VEN < 0.4V -- -- 1 μA
Q_SD
V
V
IH
VIN = 2.5V to 5.5V, Shutdown -- -- 0.4
IL
= 300mA, V
I
OUT
= 1mA 2 -- +2 %
OUT
= (V
V
IN
V
> 2.5V, whichever is larger
IN
1mA < I
LOAD
= 2.5V to 5.5V, Power On 1.5 -- --
IN
+ 0.3V) to 5.5V or
OUT
< 300mA -- -- 0.6 %
OUT
= 1Ω 330 450 700 mA
= 150mA, V
OUT
> 2.8V -- 120 -- mV
OUT
> 2.8V -- 240 -- mV
OUT
-- -- 0.2 %/V
V
Thermal Shutdown TSD -- 170 -- °C
Thermal Shutdown Hysteresis ΔTSD -- 40 -- °C
To be continued
DS9010-00 April 2006 www.richtek.com
3
RT9010
Parameter Symbol Test Conditions Min Typ Max Units
PSRR Loading=10mA
PSRR Loading=150mA
PSRR
PSRR
f =100Hz -- 65 -- dB
f =1kHz -- 60 -- dB
f =10kHz -- 50 -- dB
f =100Hz -- 65 -- dB
f =1kHz -- 50 -- dB
f =10kHz -- 50 -- dB
V
THL
Low Threshold, % of nominal V (Flag On)
OUT
90 -- -- %
Reset Threshold
High Threshold, % of nominal V (Flag Off)
Flag off 1 0.01 1 μA
POR Output Logic Low Voltage V
POR Leakage Current I
V
THH
POR_L IL
POR
Set pin current source V
= 250μA -- 0.02 0.1 V
= 0 0.60 1.25 1.70 μA
SET
OUT
-- -- 96 %
Set pin threshold POR = high -- 1.4 -- V
Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for
stress ratings. 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 for extended
periods may remain possibility to affect device reliability.
Note 2. Devices are ESD sensitive. Handling precaution recommended. Note 3. The device is not guaranteed to function outside its operating conditions. Note 4. θ
Note 5. The dropout voltage is defined as V
is measured in the natural convection at TA = 25°C on a low effective thermal conductivity test board of
JA
JEDEC 51-3 thermal measurement standard.
-V
IN
, which is measured when V
OUT
OUT
is V
OUT(NORMAL)
100mV.
DS9010-00 April 2006www.richtek.com
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