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PDF RT9014 Data sheet ( Hoja de datos )
| Número de pieza | RT9014 | |
| Descripción | Ultra Low Noise 300mA Dual LDO Regulator | |
| Fabricantes | Richtek Technology | |
| Logotipo |  |
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Preliminary
RT9014/A
Ultra Low Noise 300mA Dual LDO Regulator with POR,
NMOS Driver and Requiring No Bypass Capacitor
General Description
Features
RT9014/A is a dual channel, low noise, and low dropout
with the sourcing ability up to 300mA, an open drain driver
and power-on reset function. The open-drain output is
capable of sinking 150mA for LED backlighting
applications.
www.DataSTheheet4Ura.cnogme of output voltage is from 1.2V to 3.6V by
operating from 2.5V to 5.5V input.
RT9014/A offers 2% accuracy, extremely low dropout
voltage (240mV @ 300mA), and extremely low ground
current, only 27μA per LDO. 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.
RT9014/A is short circuit thermal folded back protected.
RT9014/A lowers its OTP trip point from 165°C to 110°C
when output short circuit occurs (VOUT < 0.4V) providing
maximum safety to end users.
RT9014/A can operate stably with very small ceramic
output capacitors, reducing required board space and
component cost. RT9014/A is available in fixed output
voltages in the WDFN-10L 3x3 package.
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
NC
SW
SET
1
2
3
4
5
GND
11
10 VOUT1
9 VOUT2
8 POR
7 DRV
GND
VIN
EN1
EN2
SW
SET
1
2
3
4
5
GND
11
10 VOUT1
9 VOUT2
8 POR
7 DRV
GND
z Wide Operating Voltage Ranges : 2.5V to 5.5V
z Low-Noise for RF Application
z No Noise Bypass Capacitor Required
z Fast Response in Line/Load Transient
z TTL-Logic-Controlled Shutdown Input
z Low Temperature Coefficient
z Dual LDO Outputs (300mA/300mA)
z 1 Open-Drain Driver
z Ultra-low Quiescent Current 27μA/LDO
z High Output Accuracy 2%
z Short Circuit Protection
z Thermal Shutdown Protection
z Current Limit Protection
z Short Circuit Thermal Folded Back Protection
z Tiny 10-Lead WDFN Package
z RoHS Compliant and 100% Lead (Pb)-Free
Ordering Information
RT9014/A-
Package Type
QW : WDFN-10L 3x3 (W-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Output Voltage : VOUT1/VOUT2
FM : 1.50V/2.80V, FP : 1.50V/3.00V
GK : 1.80V/2.60V, GM : 1.80V/2.80V
GP : 1.80V/3.00V, JG : 2.50V/1.80V
JM : 2.50V/2.80V, JP : 2.50V/3.00V
JN : 2.50V/2.85V, PJ : 3.00V/2.50V
PP : 3.00V/3.00V, CS : 1.2V/3.3V
EN Function Independent
EN Function Dependent
Note :
Richtek Pb-free and Green 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.
RT9014
RT9014A
WDFN-10L 3x3
DS9014/A-08 August 2007
www.richtek.com
1
1 page  
Preliminary
RT9014/A
Absolute Maximum Ratings (Note 1)
z Supply Input Voltage ------------------------------------------------------------------------------------------------------ 6V
z Other I/O Pin Voltages --------------------------------------------------------------------------------------------------- 6V
z Power Dissipation, PD @ TA = 25°C
WDFN-10L 3x3 ------------------------------------------------------------------------------------------------------------- 0.926W
z Package Thermal Resistance (Note 4)
WDFN-10L 3x3, θJA ------------------------------------------------------------------------------------------------------- 108°C/W
z Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C
z Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
www.DataShzeEetS4UD.cSomusceptibility (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 -------------------------------------------------------------------------------------------- 0°C to 85°C
Electrical Characteristics
(VIN = VOUT + 1V, VEN = VIN, CIN = COUT = 1μF, TA = 25°C, unless otherwise specified.)
Parameter
Symbol
Test Conditions
Input Voltage
VIN VIN = 2.5V to 5.5V
Dropout Voltage (Note 5)
IOUT = 150mA
VDROP
IOUT = 300mA
Output voltage range
VOUT
VOUT Accuracy
Line Regulation
Load Regulation
ΔV IOUT = 1mA
ΔVLINE
VIN = (VOUT + 0.3V) to 5.5V or
VIN > 2.5V, whichever is larger
ΔVLOAD 1mA < IOUT< 300mA
Current Limit
RLOAD = 1Ω
Quiescent Current
IQ VEN > 1.5V
Shutdown Current
IQ_SD VEN < 0.4V
EN Threshold
VIH VIN = 2.5V to 5.5V, Power On
VIL VIN = 2.5V to 5.5V, Shutdown
Output Voltage TC
Thermal Shutdown
Thermal Shutdown Hysteresis
TSD
ΔTSD
Min
2.5
--
--
1.2
-2
--
--
330
--
--
1.5
--
--
--
--
Typ Max Units
-- 5.5 V
120 -- mV
240 -- mV
-- 3.6 V
-- +2 %
-- 0.2 %/V
-- 0.6 %
450 700 mA
58 80 uA
-- 1 uA
-- --
V
-- 0.4
100 -- ppm/°C
170 --
°C
40 -- °C
To be continued
DS9014/A-08 August 2007
www.richtek.com
5
5 Page 
Preliminary
For recommended operating conditions specification of
RT9014/A, where TJ(MAX) is the maximum junction
temperature of the die (125°C) and TA is the operated
ambient temperature. The junction to ambient thermal
resistance (θJA is layout dependent) for WDFN-10L 3x3
package is 108°C/W on the standard JEDEC 51-3 single-
layer thermal test board. The maximum power dissipation
at TA = 25°C can be calculated by following formula :
PD(MAX) = ( 125°C − 25°C ) / 108 = 0.926W for
www.DataShWeDet4FUN.c-1om0L 3x3 packages
The maximum power dissipation depends on operating
ambient temperature for fixed TJ(MAX) and thermal
resistance θJA . For RT9014/A packages, the Figure 3 of
derating curves allows the designer to see the effect of
rising ambient temperature on the maximum power
allowed.
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
WDFN-10L 3x3
25 50 75 100
Ambient Temperature (°C)
125
Figure 3. Derating Curves for RT9014/A Packages
RT9014/A
DS9014/A-08 August 2007
www.richtek.com
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet RT9014.PDF ] | |
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