LTC3728LEGN Linear Technology, LTC3728LEGN Datasheet - Page 35
![IC REG SW DUAL 2PH STPDWN 28SSOP](/photos/6/59/65971/161-28-ssop_sml.jpg)
LTC3728LEGN
Manufacturer Part Number
LTC3728LEGN
Description
IC REG SW DUAL 2PH STPDWN 28SSOP
Manufacturer
Linear Technology
Series
PolyPhase®r
Type
Step-Down (Buck)r
Datasheet
1.LTC3728LXCUHPBF.pdf
(36 pages)
Specifications of LTC3728LEGN
Internal Switch(s)
No
Synchronous Rectifier
Yes
Number Of Outputs
2
Voltage - Output
0.8 ~ 7 V
Current - Output
3A
Frequency - Switching
250kHz ~ 550kHz
Voltage - Input
4.5 ~ 28 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-SSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power - Output
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC3728LEGN
Manufacturer:
LINEAR
Quantity:
84
Part Number:
LTC3728LEGN
Manufacturer:
LINEAR
Quantity:
20 000
Company:
Part Number:
LTC3728LEGN#2CQPBF
Manufacturer:
LT
Quantity:
3 048
Company:
Part Number:
LTC3728LEGN#PBF
Manufacturer:
KEC
Quantity:
1 130
Part Number:
LTC3728LEGN#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LTC3728LEGN#TRPBF
Manufacturer:
LT
Quantity:
3 048
Part Number:
LTC3728LEGN#TRPBF
Manufacturer:
LT/凌特
Quantity:
20 000
Company:
Part Number:
LTC3728LEGN-1#PBF
Manufacturer:
LT
Quantity:
189
PACKAGE DESCRIPTION
5.50 ±0.05
4.10 ±0.05
(4 SIDES)
3.50 REF
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
NOTE:
1. DRAWING PROPOSED TO BE A JEDEC PACKAGE OUTLINE
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
M0-220 VARIATION WHHD-(X) (TO BE APPROVED)
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.20mm ON ANY SIDE
ON THE TOP AND BOTTOM OF PACKAGE
RECOMMENDED SOLDER PAD LAYOUT
PIN 1
TOP MARK
(NOTE 6)
3.45 ± 0.05
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
5.00 ± 0.10
(4 SIDES)
3.45 ± 0.05
0.50 BSC
0.25 ± 0.05
(Reference LTC DWG # 05-08-1693 Rev D)
32-Lead Plastic QFN (5mm × 5mm)
0.70 ±0.05
PACKAGE OUTLINE
UH Package
0.75 ± 0.05
(4-SIDES)
3.50 REF
0.200 REF
0.00 – 0.05
R = 0.05
TYP
LTC3728L/LTC3728LX
BOTTOM VIEW—EXPOSED PAD
R = 0.115
3.45 ± 0.10
TYP
3.45 ± 0.10
31
0.50 BSC
0.25 ± 0.05
32
PIN 1 NOTCH R = 0.30 TYP
OR 0.35 × 45° CHAMFER
(UH32) QFN 0406 REV D
1
2
0.40 ± 0.10
35
3728lxfe