LTC3422 Просмотр технического описания (PDF) - Linear Technology
Номер в каталоге
Компоненты Описание
производитель
LTC3422 Datasheet PDF : 16 Pages
| |||
LTC3422
ABSOLUTE AXI U RATI GS
(Note 1)
VIN, VOUT, SYNC Voltages ........................... – 0.3V to 6V
FB, SS, BURST, SHDN Voltages ................ – 0.3V to 6V
SW Voltage
DC .......................................................... – 0.3V to 6V
Pulsed < 100ns ...................................... – 0.3V to 7V
Operating Temperature Range
(Notes 2, 5) ............................................. –40°C to 85°C
Storage Temperature Range ................. – 65°C to 125°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
SW 1
VIN 2
BURST 3
SS 4
SHDN 5
10 VOUT
9 SYNC
11
8 RT
7 VC
6 FB
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
TJMAX = 125°C, θJA = 43°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER PART NUMBER
LTC3422EDD
DD PART MARKING
LBRN
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 1.2V, VOUT = 3.3V, RT = 28k, unless otherwise noted. (Note 2)
PARAMETER
Minimum VIN Start-Up Voltage
Minimum VIN Operating Voltage
Output Voltage Adjust Range
Feedback Voltage
Feedback Input Current
Quiescent Current—Burst Mode Operation
Quiescent Current—Shutdown
Quiescent Current—Active
NMOS Switch Leakage
PMOS Switch Leakage
NMOS Switch On Resistance
PMOS Switch On Resistance
NMOS Current Limit—Steady State
NMOS Current Limit—Pulsed
NMOS Current Limit—Short Circuit
NMOS Burst Current Limit
Maximum Duty Cycle
Minimum Duty Cycle
Frequency
SYNC Input High
SYNC Input Low
SYNC Input Current
CONDITIONS
ILOAD < 1mA
(Note 3)
VFB = 1.216V
VC = 0V (Note 4)
SHDN = 0V, VOUT = 0V
VC = 0V (Note 4)
VOUT = 2V
VOUT = 3.3V
VOUT = 3.3V
Duty Cycle Not to Exceed 5%
VOUT = 500mV, VIN = 2.5V
MIN
●
2.25
● 2.40
● 1.192
● 1.5
2
● 84
●
● 0.85
● 2.2
●
TYP
0.88
1.216
1
25
0.1
0.75
0.1
0.1
0.20
0.24
2.5
0.75
600
91
1
0.01
MAX
1
0.5
5.25
5.25
1.240
50
42
1
1.1
5
10
1.5
0
1.15
0.8
1
UNITS
V
V
V
V
V
nA
µA
µA
mA
µA
µA
Ω
Ω
A
A
A
mA
%
%
MHz
V
V
µA
3422fa
2
Share Link: 