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DC-DC CONVERTER. SC46208 Datasheet

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DC-DC CONVERTER. SC46208 Datasheet






SC46208 CONVERTER. Datasheet pdf. Equivalent




SC46208 CONVERTER. Datasheet pdf. Equivalent





Part

SC46208

Description

HIGH EFFICIENCY SYNCHRONOUS STEP-DOWN DC-DC CONVERTER



Feature


SC46208 1.25MHz, 600mA, HIGH EFFICIENCY SYNCHRONOUS STEP-DOWN DC-DC CONVERTER D ESCRIPTION SC46208 is a synchronous ste p-down DC-DC converter with high effici ency. It adopts small flat package. The device features 2.5~5.5V input voltage , 600mA output current, peak current mo de PWM and integrated compensation net, which is ideal for powering portable e quipment that runs.
Manufacture

Silan Microelectronics

Datasheet
Download SC46208 Datasheet


Silan Microelectronics SC46208

SC46208; from a single cell Li+ battery without external components. The device integra tes an internal switch which eliminates the Schottky diode, 1.25MHz high frequ ency allows the periphery to adopt SMT inductor and capacitor, thus reduce the size of total solution. It can also ru n at 100% duty cycle for low dropout op eration, that is lower than 1μA shutdo wn current and 20μA.


Silan Microelectronics SC46208

quiescent current in power saving mode. It extends battery life in portable sy stem through increasing the efficiency under light loads. SC46208 is available in an adjustable version and fixed ver sion. www.DataSheet4U.com APPLICATION * Cellular Telephones * PDAs * Wireles s Equipment * MP3 player * Digital Came ra * Portable Instruments FEATURES * H igh efficiency up .


Silan Microelectronics SC46208

to 95% * Automatic Power Saving Mode at light loads, only 20μA quiescent curre nt. * Wide input voltage range: +2. 5V~ +5.5V * Output voltage range: 0.6V~VIN * High output current 600mA * Low dropo ut operation: 100% * Shutdown current<1 μA * 1.25MHz fixed frequency * No Scho ttky diode required * Thermal shutdown protection * 4KV HBM ESD protection * S mall 5-pin SOT-23pac.

Part

SC46208

Description

HIGH EFFICIENCY SYNCHRONOUS STEP-DOWN DC-DC CONVERTER



Feature


SC46208 1.25MHz, 600mA, HIGH EFFICIENCY SYNCHRONOUS STEP-DOWN DC-DC CONVERTER D ESCRIPTION SC46208 is a synchronous ste p-down DC-DC converter with high effici ency. It adopts small flat package. The device features 2.5~5.5V input voltage , 600mA output current, peak current mo de PWM and integrated compensation net, which is ideal for powering portable e quipment that runs.
Manufacture

Silan Microelectronics

Datasheet
Download SC46208 Datasheet




 SC46208
SC46208www.DataSheet4U.com
1.25MHz, 600mA, HIGH EFFICIENCY SYNCHRONOUS STEP-DOWN DC-DC
CONVERTER
DESCRIPTION
SC46208 is a synchronous step-down DC-DC converter with high
efficiency. It adopts small flat package. The device features 2.5~5.5V
input voltage, 600mA output current, peak current mode PWM and
integrated compensation net, which is ideal for powering portable
equipment that runs from a single cell Li+ battery without external
components.
The device integrates an internal switch which eliminates the
Schottky diode, 1.25MHz high frequency allows the periphery to adopt
SMT inductor and capacitor, thus reduce the size of total solution. It
can also run at 100% duty cycle for low dropout operation, that is
lower than 1μA shutdown current and 20μA quiescent current in
power saving mode. It extends battery life in portable system through
increasing the efficiency under light loads.
SC46208 is available in an adjustable version and fixed version.
APPLICATION
FEATURES
* High efficiency up to 95%
* Automatic Power Saving Mode at light loads, only 20μA quiescent
current.
* Wide input voltage range: +2. 5V~+5.5V
* Output voltage range: 0.6V~VIN
* High output current 600mA
* Low dropout operation: 100%
* Shutdown current<1μA
* 1.25MHz fixed frequency
* No Schottky diode required
* Thermal shutdown protection
* 4KV HBM ESD protection
* Small 5-pin SOT-23package
* Cellular Telephones
* PDAs
* Wireless Equipment
* MP3 player
* Digital Camera
* Portable Instruments
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.1
2008.09.10
Page 1 of 11




 SC46208
ORDERING INFORMATION
Device no
SC46208
SC4620810
SC4620812
SC46208XX
SC4620815
SC4620818
SC4620825
SC4620833
BLOCK DIAGRAM
Seal name
6208
20810
20812
20815
20818
20825
20833
SC46208www.DataSheet4U.com
Package
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
Remark
Note: “××” indicates the output
voltage:
Default: adjustable
10 :1.0V
12 :1.2V
15 :1.5V
18 :1.8V
25 :2.5V
33 :3.3V
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.1
2008.09.10
Page 2 of 11




 SC46208
SC46208www.DataSheet4U.com
ABSOLUTE MAXIMUM RATING
Characteristics
Input Supply Voltage VIN
Enable Voltage EN
SW Voltage
Output Feedback Voltage
Operating Temperature
Storage Temperature
ESD Characteristic(HBM)
Symbol
VIN
VEN
VSW
VFB
Tamb
TSTG
ESD
Rating
-0.3 ~ +6
-0.3 ~ VIN
-0.3 ~ VIN+0.3
-0.3 ~ +6
-40 ~ + 85
-65 ~ +125
4.0
Unit
V
V
V
V
°C
°C
KV
ELECTRICAL CHARACTERISTICS(unless otherwise noted, Tamb =25°C, VIN=3.6V, L=2.2μH, COUT=10μF,
load current ILOAD=0)
Characteristics
Input Voltage Range
Feedback Voltage
Quiescent Current (Switch Off)
Quiescent Current (Shutdown
Mode)
Quiescent Current (PWM Mode)
Output Voltage Regulation
Output Voltage Load Regulation
Feedback Current
PMOS On Resistor
NMOS On Resistor
PMOS Limit Current
Switch Frequency
Max. Duty
Switch Leakage Current SW
EN Input High Level
EN Input Low Level
EN Leakage Current
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Temperature
Symbol
Test conditions
VIN
VFB Only for adjustable version
Iswitch off FB=0.62V,or VOUT=103%
ISHDN EN=0V
FB=0.5V ,
Iq
Or VOUT=90%
VOUT
VLOAD 0mAIL 600mA
IFB Only for adjustable version
RPMOS ISW=100mA
RNMOS ISW=-100mA
ILIMIT 2.5VVIN 5.5V
FB=0.6V,or VOUT=100
FS
FB=0 V,or VOUT=0
DMAX FB=0.5V
ILSW EN=0V,SW=0V or 5V,VIN =5V
VH --
VL --
ILEN
Tj(sd) --
Thyst --
Min.
2.5
0.585
Typ.
0.6
20
Max.
5.5
0.615
30
Unit.
V
V
μA
0.1 1 μA
200 300 μA
0.5 %
0.1 mV/mA
-50 50 nA
0.45 0.5
Ω
0.35 0.4
Ω
1.25 1.5 1.75 A
1. 1.25 1.5 MHz
600 KHz
100 %
±0.01 ±1
μA
1.5 V
0.3 V
-- ±0.01 ±1
μA
-- 150 --
°C
-- 20 -- °C
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.1
2008.09.10
Page 3 of 11






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