900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Linear Technology Electronic Components Datasheet

LTC3606B Datasheet

800mA Synchronous Step-Down DC/DC

No Preview Available !

LTC3606B
800mA Synchronous
Step-Down DC/DC with
Average Input Current Limit
FEATURES
DESCRIPTION
n Programmable Average Input Current Limit:
±5% Accuracy
n Step-Down Output: Up to 96% Efficiency
n Low Noise Pulse-Skipping Operation at Light Loads
n Input Voltage Range: 2.5V to 5.5V
n Output Voltage Range: 0.6V to 5V
n 2.25MHz Constant-Frequency Operation
n Power Good Output Voltage Monitor
n Low Dropout Operation: 100% Duty Cycle
n Internal Soft-Start
n Current Mode Operation for Excellent Line and Load
Transient Response
n ±2% Output Voltage Accuracy
n Short-Circuit Protected
n Shutdown Current ≤ 1μA
n Available in Small Thermally Enhanced 8-Lead
3mm × 3mm DFN Package
APPLICATIONS
n High Peak Load Current Applications
n USB Powered Devices
n Supercapacitor Charging
wwwn.DaRtaaSdhieoetT4rUa.ncosmmitters and Other Handheld Devices
The LTC®3606B is an 800mA monolithic synchronous
buck regulator using a constant frequency current mode
architecture.
The input supply voltage range is 2.5V to 5.5V, making it
ideal for Li-Ion and USB powered applications. 100% duty
cycle capability provides low dropout operation, extending
the run time in battery-operated systems. Low output
voltages are supported with the 0.6V feedback reference
voltage. The LTC3606B can supply 800mA output current.
The LTC3606B’s programmable average input current
limit is ideal for USB applications and for point-of-load
power supplies because the LTC3606B’s limited input
current will still allow its output to deliver high peak load
currents without collapsing the input supply. The operating
frequency is internally set at 2.25MHz allowing the use of
small surface mount inductors. Internal soft-start reduces
in-rush current during start-up. The LTC3606B is available
in an 8-Lead 3mm × 3mm DFN package.
L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks
of Linear Technology Corporation. All other trademarks are the property of their respective
owners. Protected by U.S.Patents, including 5481178, 6127815, 6304066, 6498466, 6580258,
6611131.
TYPICAL APPLICATION
Monolithic Buck Regulator with Input Current Limit
VIN 3.4V
TO 5.5V
PGOOD
CIN
10μF
499k
VIN SW
LTC3606B
RUN
PGOOD
RLIM
VFB
GND
1000pF 116k
ILIM = 475mA
1.5μH
1210k
255k
VOUT
3.4V AT
800mA
+ 2.2mF
s2
SuperCap
3606B TA01
GSM Pulse Load
VOUT
200mV/DIV
VIN
AC-COUPLED
1V/DIV
IOUT
500mA/DIV
IIN
500mA/DIV
1ms/DIV
VIN = 5V, 500mA COMPLIANT
ILOAD = 0A to 2.2A
3606B TA01b
3606bf
1


Linear Technology Electronic Components Datasheet

LTC3606B Datasheet

800mA Synchronous Step-Down DC/DC

No Preview Available !

LTC3606B
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage (VIN)........................... –0.3V to 6V
VFB ................................................... –0.3V to VIN + 0.3V
RUN, RLIM....................................... –0.3V to VIN + 0.3V
SW ................................................... –0.3V to VIN + 0.3V
PGOOD............................................. –0.3V to VIN + 0.3V
P-Channel SW Source Current (DC) (Note 2)..............1A
N-Channel SW Source Current (DC) (Note 2) .............1A
Peak SW Source and Sink Current (Note 2) ............. 2.7A
Operating Junction Temperature Range
(Notes 3, 6, 8)........................................ –40°C to 125°C
Storage Temperature Range .................. –65°C to 125°C
Reflow Peak Body Temperature ............................ 260°C
PIN CONFIGURATION
TOP VIEW
GND 1
8 VFB
RLIM 2 9 7 RUN
GND 3 GND 6 PGOOD
SW 4
5 VIN
DD PACKAGE
8-LEAD (3mm s 3mm) PLASTIC DFN
TJMAX = 125°C, θJA = 40°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3606BEDD#PBF
LTC3606BEDD#TRPBF LFMB
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 85°C
LTC3606BIDD#PBF
LTC3606BIDD#TRPBF LFMB
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
www.DataSheet4U.com
3606bf
2


Part Number LTC3606B
Description 800mA Synchronous Step-Down DC/DC
Maker Linear Technology Corporation
PDF Download

LTC3606B Datasheet PDF






Similar Datasheet

1 LTC3606B 800mA Synchronous Step-Down DC/DC
Linear Technology Corporation





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy