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PDF TD8211 Data sheet ( Hoja de datos )
| Número de pieza | TD8211 | |
| Descripción | Step Up Regulator | |
| Fabricantes | Techcode | |
| Logotipo |  |
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T echcode®
High Efficiency 1.5MHz, Step Up Regulator
DATASHEET
TD8211
General Description
Features
The TD8211 is a fixed switching frequency (1.5MHz typical),
z Wide 2.7V to 6V Input Voltage Range
current-mode, step-up regulator with an integrated N-channel
z Built‐in 0.2Ω N‐Channel MOSFET
MOSFET. The device allows the usage of small inductors and
z Built‐in Soft‐Start
output capacitors for portable devices. The current-mode control z High Efficiency up to 90%
scheme provides fast transient response and good output voltage z <1mA Quiescent Current During Shutdown
accuracy.
z Current‐Mode Operation
The TD8211 includes under-voltage lockout, currentlimit,and
z Stable with Ceramic Output Capacitors
over-temperature shutdown preventing damage in the event of an z Fast Transient Response
output overload.
z Current‐Limit Protection
z Over‐Temperature Protection with Hysteresis
z Available in a SOT‐23‐6A and TDFN2x2‐6 Package
z Lead Free and Green Devices Available
z (RoHS Compliant)
Applications
z Cell Phone and Smart Phone
z PDA, PMP, MP3
z Digital Camera
z Boost Regulators
Package Types
SOT236
Figure 1. Package Types of TD8211
October, 20, 2011. Techcode Semiconductor Limited www.techcodesemi.com
1
1 page  
T echcode®
High Efficiency 1.5MHz, Step Up Regulator
Electrical Characteristics
DATASHEET
TD8211
Symbol Parameter
VIN
IDD1
IDD2
ISD
VREF
IFB
FSW
RON
ILIM
DMAX
TSS
VTEN
ILEN
TOTP
Input Voltage
Input DC Bias Current
UVLO Threshold Voltage
UVLO Hysteresis Voltage
Regulated Feedback Voltage
FB Input Current
Switching Frequency
Power Switch On Resistance
Power Switch Current Limit
LX Leakage Current
LX Maximum Duty Cycle
Soft‐Start Duration
EN Voltage Threshold
EN Voltage Hysteresis
EN Leakage Current
Over‐Temperature Protection
Over‐Temperature Protection
Test Conditions
TA=‐40~85oC TJ=-40~120 oC
VFB=1.3V,no switching
VFB=1.1V, switching
EN=GND
VIN Rising
VIN Falling
VIN=2.7V~6V, TA = 25 oC
VIN=2.7V~6V, TA = -40 ~ 85 oC
VEN = 0V, VLX = 0V or 6V, VIN = 6V
VEN Rising
VEN=5V, VIN = 5V
TJ Rising
TJ Falling
TD8211
Min. Typ.
2.7
‐ 300
‐
‐
2.0
50
1.212
1.205
‐50
1.25
2.2
‐1
92
0.4
‐1
2
‐
2.2
100
1.23
1.5
0.2
95
2
0.7
0.1
150
40
Max.
6
‐
5
1
2.4
150
1.248
1.255
50
1.75
1
98
3
1
1
Unit
V
uA
mA
µA
V
mV
V
nA
MHz
Ω
A
uA
%
ms
V
V
uA
oC
oC
October, 20, 2011. Techcode Semiconductor Limited www.techcodesemi.com
5
5 Page 
T echcode®
High Efficiency 1.5MHz, Step Up Regulator
Typical Application Circuit(Cont.)
DATASHEET
TD8211
Figure 3. Multiple Output for TFTLCD Power Supply
October, 20, 2011. Techcode Semiconductor Limited www.techcodesemi.com
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet TD8211.PDF ] | |
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