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PDF TD5830B Data sheet ( Hoja de datos )
| Número de pieza | TD5830B | |
| Descripción | 3A Low Dropout Regulator | |
| Fabricantes | Techcode | |
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Techcode®
3A Low Dropout Regulator with Enable
DATASHEET
TD5830A/B
General Description
Features
The TD5830 is a high performance positive voltage
regulator designed for use in applications requiring very
low Input voltage and very low dropout voltage at up to 3
amps. It operates with a VIN as low as 1.6V and VPP
voltage 5V with output voltage programmable as low as
0.8V. The TD5830 features ultra low dropout, ideal for
applications where VOUT is very close to VIN.
Additionally, the TD5830 has an enable pin to further
reduce power dissipation while shutdown. The TD5830
provides excellent regulation over variations in line,
load and temperature. The TD5830 provides a power OK
signal to indicate if the voltage level of VO reaches
92% of its rating value.
The TD5830 is available in the power SOP-8PP pack-
age. It is available with 1.2V, 1.5V, 1.8V and 2.5V in-
ternally preset outputs that are also adjustable using
external resistors.
Adjustable Output Low to 0.8V
Input Voltage as Low as 1.6V and VPP Voltage 5V
240mV Dropout @ 3A
Over Current and Over Temperature Protection
Enable Pin
Low Reverse Leakage (Output to Input )
Power SOP8 –PP Packages with Thermal Pad
±2% Output Voltage
VO Power OK Signal
1.2V, 1.5V, 1.8V, 2.5V Options and Adjustable
Externally Using Resistors
VO Pull Low Resistance when Disable
Applications
Motherboards
Peripheral Cards
Network Cards
Set Top Boxes
Notebook Computers
Package Types
December, 20, 2009.
Figure 1. Package Types of TD5830
Techcode Semiconductor Limited
1
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1 page  
Techcode®
3A Low Dropout Regulator with Enable
Recommended Operating Conditions
DATASHEET
TD5830A/B
Symbol
VDD
VIN
VOUT
IOUT
R2
COUT
ESRCOUT
TA
TJ
Parameter
VCNTL Supply Voltage
VIN Supply Voltage
VOUT Output Voltage (when VCNTL-VOUT>1.7V)
VOUT Output Current
ADJ to GND
IOUT = 3A at 25% nominal VOUT
VOUT Output Capacitance
IOUT = 1.5A at 25% nominal VOUT
IOUT = 0.5A at 25% nominal VOUT
ESR of VOUT Output Capacitor
Ambient Temperature
Junction Temperature
Range
3.0 ~ 5.5
1.2 ~ 5.5
0.8 ~ VIN – VDROP
0~3
1k ~ 24k
8~770
8~1400
8~1700
0 ~ 200
-40 ~ 85
-40 ~ 125
Unit
V
V
V
A
Ω
uF
mΩ
ºC
ºC
Electrical Characteristics
Note:Refer to the typical application circuits. These specifications apply over VCNTL=5V, vIN=1.8v, VOUT=1.2V, and TA= -40 ~ 85oC, unless otherwise specified.
Typical values are at TJ=25oC.
Symbol
VTH_ADJ
VADJ
Δ VOUT
Δ VLINE_IN
Parameter
POR Threshold
POR Hysteresis
Adjustable Pin Threshold
Reference Voltage
Fixed Output Voltage Range
Line Regulation(VIN)
Δ VLOAD Load Regulation
VDROP
IQ
ILIM
Dropout Voltage
Quiescent Current
Current Limit
Short Circuit Current
In-rush Current
VOUT Pull-Low Resistance
Chip Enable
IEN EN Input Bias Current
ISHDN
VDD Shutdown Current
Test Conditions
IOUT=1mA
FB=Vout IOUT=1mA TJ=25 ºC
VIN=VOUT+0.5V TO 5V
IOUT=1mA
VIN=VOUT+1V
IOUT=1mA TO 3A
IOUT= 3A
VDD=5.5V
VOUT<0.2V
COUT=10uF,Enable Start-up
VEN=0V
VEN=0V
TD5830A
Min.
2.4
0.15
-
0.784
-2
-
Typ.
2.7
0.2
0.2
0.8
0
0.2
Max.
3
-
0.4
0.816
+2
0.6
Unit
V
V
V
V
%
%
-
0.1 1
%
210 350 mV
- 0.6 1.2 mA
3.2 4.5
A
0.5 1.8
A
0.6 A
- 150 - Ω
12 uA
- 10 20 uA
December, 20, 2009.
Techcode Semiconductor Limited
5
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5 Page 
Techcode®
3A Low Dropout Regulator with Enable
Typical Application Circuit
DATASHEET
TD5830A/B
Figure3:Fixed Voltage Regulator Application Circuit of TD5830A/B
Figure4:Adjustable Voltage Regulator Application Circuit of TD5830A/B
December, 20, 2009.
Techcode Semiconductor Limited
11
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11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet TD5830B.PDF ] | |
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