Datasheet

LTC2938/LTC2939
2
293839ff
ABSOLUTE MAXIMUM RATINGS
V1, V2, V3, V4, V5, V6, V
PG
......................... –0.3V to 7V
RST .............................................................. –0.3V to 7V
CWT, WDO .................................................... –0.3V to 7V
CRT, V
REF
, WDI ..............................–0.3V to (V
CC
+ 0.3V)
Reference Load Current (I
VREF
) .............................. ±1mA
V4 Input Current (–ADJ Mode) ..............................–1mA
RST, WDO Currents ............................................±10mA
(Notes 1, 2, 3)
12
11
10
9
8
7
13
1
2
3
4
5
6
V2
V4
V
REF
V
PG
GND
CWT
V3
V1
CRT
RST
WDO
WDI
TOP VIEW
DE PACKAGE
12-LEAD (4mm s 3mm) PLASTIC DFN
T
JMAX
= 125°C, θ
JA
= 43°C/W
EXPOSED PAD (PIN 13) PCB GND CONNECTION OPTIONAL
1
2
3
4
5
6
V3
V1
CRT
RST
WDO
WDI
12
11
10
9
8
7
V2
V4
V
REF
V
PG
GND
CWT
TOP VIEW
MS PACKAGE
12-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 130°C/W
1
2
3
4
5
6
7
8
V5
V3
V1
NC
CRT
RST
WDO
WDI
16
15
14
13
12
11
10
9
V6
V2
V4
NC
V
REF
V
PG
GND
CWT
TOP VIEW
MS PACKAGE
16-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 110°C/W
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2938CDE#PBF LTC2938CDE#TRPBF 2938
12-Lead (4mm × 3mm) Plastic DFN
0°C to 70°C
LTC2938IDE#PBF LTC2938IDE#TRPBF 2938
12-Lead (4mm × 3mm) Plastic DFN
–40°C to 85°C
LTC2938HDE#PBF LTC2938HDE#TRPBF 2938
12-Lead (4mm × 3mm) Plastic DFN
–40°C to 125°C
LTC2938CMS#PBF LTC2938CMS#TRPBF 2938 12-Lead Plastic MSOP 0°C to 70°C
LTC2938IMS#PBF LTC2938IMS#TRPBF 2938 12-Lead Plastic MSOP –40°C to 85°C
LTC2938HMS#PBF LTC2938HMS#TRPBF 2938 12-Lead Plastic MSOP –40°C to 125°C
LTC2939CMS#PBF LTC2939CMS#TRPBF 2939 16-Lead Plastic MSOP 0°C to 70°C
LTC2939IMS#PBF LTC2939IMS#TRPBF 2939 16-Lead Plastic MSOP –40°C to 85°C
LTC2939HMS#PBF LTC2939HMS#TRPBF 2939 16-Lead Plastic MSOP –40°C to 125°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
Operating Temperature Range
LTC2939C ..................................................... 0°C to 70°C
LTC2939I .................................................. –40°C to 85°C
LTC2939H .............................................. –40°C to 125°C
Storage Temperature Range ................... –65°C to 150°C
Lead Temperature (Soldering 10 sec)
MS Package Only .............................................. 300°C
LTC2938 LTC2938 LTC2939