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LTC3772EDDB#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
16
LTC3772
3772f
550kHz Micropower 4A Step-Down DC/DC Converter
TYPICAL APPLICATIO S
U
I
TH
/RUN
LTC3772
24.9k
82.5k
174k
B320A
L1: VISHAY IHLP-2525CZ-01
22pF
470pF
GND
V
FB
3772 TA03a
SW
V
IN
PGATE
22µF
NTMS5PO2R2
L1 2.2µH
V
IN
2.75V TO 9.8V
V
OUT
2.5V
4A
47µF
I
PRG
LOAD CURRENT (mA)
60
75
70
65
100
95
90
85
80
3772 TA03b
EFFICIENCY (%)
100
10000
1000
V
IN
= 3.3V
V
IN
= 5V
Efficiency vs Load Current
Start-Up
V
OUT
2V/DIV
I
TH
/RUN
1V/DIV
I
L
1A/DIV
V
IN
= 5V
V
OUT
= 2.5V
R
LOAD
= 3Ω
500µs/DIV
3772 TA03c
Load Step
V
OUT
200mV/DIV
AC COUPLED
I
LOAD
2A/DIV
I
L
2A/DIV
V
IN
= 5V
V
OUT
= 2.5V
20µs/DIV
3772 TA03d
17
LTC3772
3772f
550kHz Micropower 5V
IN
to 1.8V
OUT
at 8A DC/DC Converter
TYPICAL APPLICATIO S
U
I
TH
/RUN
LTC3772
15k
140k
174k22pF
470pF
GND
V
FB
3772 TA04a
SW
V
IN
PGATE
22µF
Si9803
×2
L1 1µH
V
IN
5V
V
OUT
1.8V
8A
100µF
×2
I
PRG
V
IN
18
LTC3772
3772f
DDB Package
8-Lead Plastic DFN (3mm × 2mm)
(Reference LTC DWG # 05-08-1702)
2.00 ±0.10
(2 SIDES)
NOTE:
1. DRAWING CONFORMS TO VERSION (WECD-1) IN JEDEC PACKAGE OUTLINE M0-229
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE
0.38 ± 0.10
BOTTOM VIEW—EXPOSED PAD
0.56 ± 0.05
(2 SIDES)
0.75 ±0.05
R = 0.115
TYP
2.15 ±0.05
(2 SIDES)
3.00 ±0.10
(2 SIDES)
14
85
PIN 1 BAR
TOP MARK
(SEE NOTE 6)
0.200 REF
0 – 0.05
(DDB8) DFN 1103
0.25 ± 0.05
2.20 ±0.05
(2 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
0.61 ±0.05
(2 SIDES)
1.15 ±0.05
0.675 ±0.05
2.50 ±0.05
PACKAGE
OUTLINE
0.25 ± 0.05
0.50 BSC
PIN 1
CHAMFER OF
EXPOSED PAD
0.50 BSC
U
PACKAGE DESCRIPTIO
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

LTC3772EDDB#TRPBF

Mfr. #:
Buy LTC3772EDDB#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators uP No RSENSE Const Freq Buck DC/DC Cntr
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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