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PDF EC9206 Data sheet ( Hoja de datos )
| Número de pieza | EC9206 | |
| Descripción | PFM Step-up DC-DC Converter | |
| Fabricantes | E-CMOS | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EC9206 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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PFM Step-up DC-DC Converter
EC9206
Features
General Description
z 1.0V Low Start-up Input Voltage at 1mA
Load
z Deliver 180mA at 3.3V Output with 1.5V
Input
z 87% High Efficiency (VIN=2.0V, VOUT=3.3V,
ILOAD=60mA)
z ± 2.5% Output Voltage Accuracy
z 8μA Low Switch-Off Supply Current
z 0.5μA Low Shutdown Supply Current
z SOT-23-5 or SOT-89 Package
z RoHS Compliant and 100% Lead (Pb)-Free
and Green (Halogen Free with Commercial
Standard)
Applications
The EC9206 is a compact PFM step-up DC/DC
converter that operates from an input voltage as low
as 1.0 Volt. The low start-up input voltage makes
EC9206 specially designed for portable devices
from one or two cell battery, delivering up to 180mA
load current at VIN=1.5V VOUT=3.3V. Typical
efficiency for EC9206 is 85% when VIN>=2.0V
VOUT=3.3V ILOAD=1~60mA. Potential applications
include low powered consumer products and battery
powered portable products.
The EC9206 features a minimum off-time, current
-limited, PFM control scheme which combines the
advantages of PWM (higher output power and
efficiency) and those of traditional PFM (ultra-low
quiescent current). The internal 0.6 ohm low turn-on
resistance NMOS power switch provides stable and
high-efficiency operation over a board load current
range. Chip enable feature is provided for SOT-23-5
package to power down the device.
The EC9206 devices are available in both SOT-89
and SOT-23-5 packages with 6 standard regulated
output voltages.
z PDA
z DSC
z MP3 Player
z Electronic Games
z Camcorders
z Portable Devices
z Single-and Dual-Cell Battery Operated Products
Typical Application Circuit
ECMOS CO. ( http://www.ecmos.com.tw)
TEL : 886-3-5785888
FAX : 886-3-5783630
P 1 / 13
10/13/2008
1 page  
PFM Step-up DC-DC Converter
Absolute Maximum Ratings
EC9206
Parameter
Supply Voltage
LX Pin Switch Voltage
CE Pin Voltage
LX Pin Switch Current
Junction Temperature
Thermal Resistance
SOT-89
SOT-23-5
Power Dissipation
SOT-89
SOT-23-5
Operating Ambient Temperature
Storage Temperature
Lead Temperature (soldering, 10sec)
Human Body Model, per
MIL-STD-883D-3015.7
ESD Ratings
Machine Model,
MIL-STM5.2-1999
Symbol
TJ
θJA
PD
TOPR
TSTG
Ratings
-0.3~+10
-0.3~VOUT+0.3
-0.3~VOUT+0.3
700
+150
180
250
550
400
-20 ~ +70
-55 ~ +150
+260
1.5
150
Units
V
V
V
mA
°C
°C/W
mW
°C
°C
°C
KV
V
Electrical Characteristics
(VIN=1.8V, VOUT =3.3V, Load Current=1mA, TA=25˚C, unless otherwise noted.)
Symbol
VST
VHOLD
VOUT
IDD1
IDD2
IOFF
TON
TOFF
RDS(ON)
VLXLIM
Parameter
Start-up Voltage
Holding Voltage
Output Voltage
Switch On Current (VOUT)
Switch Off Current (VOUT)
Shutdown Current (VIN)
CE Input Voltage Threshold
Switch Maximum On Time
Switch Minimum Off Time
Switch on Resistance
Switch Voltage Limit
Test Conditions
IL=1mA
IL=20mA
Preset VOUT=3.3V
Preset VOUT=5.0V
VOUT= Preset VOUT*0.95
VOUT= Preset VOUT*1.1
CE = 0V, VIN=4.5V
VOUT=3.3V
VOUT=3.3V
Min
---
---
3.218
4.875
---
---
---
0.2
2
0.7
---
---
Typ
1.0
0.70
3.3
5.0
100
8
0.5
0.6
4
1
0.6
0.425
Max
1.2
---
3.383
5.125
---
---
1
1.4
7
1.3
---
---
Unit
V
V
V
V
µA
µA
µA
V
µS
µS
Ω
V
ECMOS CO. ( http://www.ecmos.com.tw)
TEL : 886-3-5785888
FAX : 886-3-5783630
P 5 / 13
10/13/2008
5 Page 
B) SOT-25
PFM Step-up DC-DC Converter
EC9206
Symbols
A
A1
A2
A3
b
C
D
E1
e1
E
L
θ1
e
L1
LI-L2
Dimensions in Millimeters
Min Nom Max
1.00 1.10 1.40
0.00 --- 0.10
1.00 1.10 1.30
0.70 0.80 0.90
0.35 0.40 0.50
0.12
0.125
0.225
2.70 2.90 3.10
1.40 1.60 1.80
--- 1.90(TYP) ---
2.60 2.80 3.00
0.37 ---
---
1° 5° 9°
--- 0.95(TYP) ---
--- 0.6(REF) ---
--- --- 0.12
ECMOS CO. ( http://www.ecmos.com.tw)
TEL : 886-3-5785888
FAX : 886-3-5783630
P 11 / 13
10/13/2008
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet EC9206.PDF ] | |
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