參數(shù)資料
型號(hào): LT1933IS6#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 1.05 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO6
封裝: 1 MM HEIGHT, LEAD FREE, PLASTIC, EIAJ, SC-74A, TSOT-23, 6 PIN
文件頁(yè)數(shù): 1/20頁(yè)
文件大?。?/td> 357K
代理商: LT1933IS6#PBF
LT1933
1
1933fe
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
600mA, 500kHz Step-Down
Switching Regulator in
SOT-23 and DFN Packages
The LT1933 is a current mode PWM step-down DC/DC
converter with an internal 0.75A power switch, packaged
in a tiny 6-lead SOT-23. The wide input range of 3.6V
to 36V makes the LT1933 suitable for regulating power
from a wide variety of sources, including unregulated wall
transformers, 24V industrial supplies and automotive
batteries. Its high operating frequency allows the use of
tiny, low cost inductors and ceramic capacitors, resulting
in low, predictable output ripple.
Cycle-by-cycle current limit provides protection against
shorted outputs, and soft-start eliminates input current
surge during start up. The low current (<2μA) shutdown
provides output disconnect, enabling easy power manage-
ment in battery-powered systems.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
3.3V Step-Down Converter
n Wide Input Range: 3.6V to 36V
n 5V at 600mA from 16V to 36V Input
n 3.3V at 600mA from 12V to 36V Input
n 5V at 500mA from 6.3V to 36V Input
n 3.3V at 500mA from 4.5V to 36V Input
n Fixed Frequency 500kHz Operation
n Uses Tiny Capacitors and Inductors
n Soft-Start
n Internally Compensated
n Low Shutdown Current: <2μA
n Output Adjustable Down to 1.25V
n Low Prole (1mm) SOT-23 (ThinSOT) and
(2mm
× 3mm × 0.75mm) 6-Pin DFN Packages
n Automotive Battery Regulation
n Industrial Control Supplies
n Wall Transformer Regulation
n Distributed Supply Regulation
n Battery-Powered Equipment
Efciency
VIN
4.5V TO 36V
OFF ON
0.1μF
22μH
1N4148
MBRM140
10k
16.5k
22μF
1933 TA01a
2.2μF
VOUT
3.3V/500mA
VIN
BOOST
GND
FB
SHDN
SW
LT1933
LOAD CURRENT (mA)
0
90
95
300
400
1933 TA01b
85
80
100
200
600
500
75
70
65
EFFICIENCY
(%)
VIN = 12V
VOUT = 5V
VOUT = 3.3V
相關(guān)PDF資料
PDF描述
LT1934IS6#PBF 0.49 A SWITCHING REGULATOR, PDSO6
LT1934ES6-1#PBF 0.16 A SWITCHING REGULATOR, PDSO6
LT1934EDCB#TR 0.49 A SWITCHING REGULATOR, PDSO6
LT1934EDCB-1 0.49 A SWITCHING REGULATOR, PDSO6
LT1934IS6-1#TR 0.16 A SWITCHING REGULATOR, PDSO6
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