LTC3416 查看數據表（PDF） - Linear Technology
零件编号
产品描述 (功能)
生产厂家
LTC3416 Datasheet PDF : 16 Pages
| |||
LTC3416
ABSOLUTE AXI U RATI GS
(Note 1)
Input Supply Voltage .................................. – 0.3V to 6V
ITH, RUN, VFB Voltages .............................. – 0.3V to VIN
TRACK Voltage .......................................... – 0.3V to VIN
SW Voltage .................................. – 0.3V to (VIN + 0.3V)
Peak SW Sink and Source Current ......................... 11A
Operating Ambient Temperature Range
(Note 2) .................................................. – 40°C to 85°C
Junction Temperature (Notes 5, 6) ...................... 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
PGND 1
RT 2
TRACK 3
RUN/SS 4
SGND 5
NC 6
PVIN 7
SW 8
SW 9
PGND 10
TOP VIEW
21
20 PGND
19 VFB
18 ITH
17 PGOOD
16 SVIN
15 NC
14 PVIN
13 SW
12 SW
11 PGND
ORDER PART
NUMBER
LTC3416EFE
FE PACKAGE
20-LEAD PLASTIC TSSOP
TJMAX = 125°C, θJA = 38°C/W, θJC = 10°C/W
EXPOSED PAD IS GND (PIN 21)
MUST BE SOLDERED TO PCB
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3.3V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
VIN
Input Voltage Range
2.25
5.5
VFB
Regulated Feedback Voltage
IFB
Feedback Input Current
(Note 3)
q 0.784
0.800
0.816
0.2
∆VFB
VTRACK
Reference Voltage Line Regulation
Tracking Voltage Offset
Tracking Voltage Range
VIN = 2.5V to 5.5V (Note 3)
VTRACK = 0.4V
0.04
0.2
30
0
0.8
VLOADREG Output Voltage Load Regulation
Measured in Servo Loop, VITH = 0.36V
Measured in Servo Loop, VITH = 0.84V
0.02 0.2
–0.02 –0.2
∆VPGOOD
RPGOOD
Power Good Range
Power Good Resistance
±7.5
±9
120 200
IQ
Input DC Bias Current
Active Current
Shutdown
(Note 4)
VFB = 0.7V, VITH = 1.2V
VRUN = 0V
300 350
0.02
1
fOSC
Switching Frequency
Switching Frequency Range
ROSC = 294kΩ
0.88
1
1.12
0.30
4.00
fSYNC
RPFET
SYNC Capture Range
RDS(ON) of P-Channel FET
ISW = 300mA
0.3
4
67
100
RNFET
ILIMIT
RDS(ON) of N-Channel FET
Peak Current Limit
ISW = –300mA
50
100
6
8
VUVLO
ILSW
Undervoltage Lockout Threshold
SW Leakage Current
VRUN = 0V, VIN = 5.5V
1.75
2
2.25
0.1
1
VRUN
RUN Threshold
0.5
0.65
0.8
UNITS
V
V
µA
%/V
mV
V
%
%
%
Ω
µA
µA
MHz
MHz
MHz
mΩ
mΩ
A
V
µA
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC3416E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: The LTC3416 is tested in a feedback loop that adjusts VFB to
achieve a specified error amplifier output voltage (ITH).
3416f
2
Share Link: 