LTC4267
ABSOLUTE AXI U RATI GS
(Note 1)
VPORTN with Respect to VPORTP Voltage... 0.3V to –100V
POUT, SIGDISA, ⎯P⎯W⎯R⎯G⎯D
Voltage..................... VPORTN + 100V to VPORTN –0.3V
PVCC to PGND Voltage (Note 2)
Low Impedance Source ........................... – 0.3V to 8V
Current Fed .......................................... 5mA into PVCC
RCLASS Voltage .................VPORTN + 7V to VPORTN – 0.3V
⎯P⎯W⎯R⎯G⎯D Current.....................................................10mA
RCLASS Current.....................................................100mA
NGATE to PGND Voltage ...........................– 0.3V to PVCC
VFB, ITH/RUN to PGND Voltages................ –0.3V to 3.5V
SENSE to PGND Voltage .............................. –0.3V to 1V
NGATE Peak Output Current (<10μs) ..........................1A
Operating Ambient Temperature Range
LTC4267C ................................................ 0°C to 70°C
LTC4267I .............................................– 40°C to 85°C
Junction Temperature
GN Package ...................................................... 150°C
DHC Package .................................................... 125°C
Storage Temperature Range...................–65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
ITH/RUN 1
PGND 2
NGATE 3
PVCC 4
RCLASS 5
NC 6
VPORTN 7
NC 8
16 VFB
15 PGND
14 SENSE
17
13 VPORTP
12 SIGDISA
11 PWRGD
10 POUT
9 NC
ORDER PART
NUMBER
LTC4267CDHC
LTC4267IDHC
DFN PART*
MARKING
PGND 1
ITH/RUN 2
NGATE 3
PVCC 4
RCLASS 5
NC 6
VPORTN 7
PGND 8
TOP VIEW
16 PGND
15 VFB
14 SENSE
13 VPORTP
12 SIGDISA
11 PWRGD
10 POUT
9 PGND
ORDER PART
NUMBER
LTC4267CGN
LTC4267IGN
GN PART
MARKING
DHC16 PACKAGE
16-LEAD (3mm × 5mm) PLASTIC DFN
TJMAX = 125°C, θJA = 43.5°C/W
EXPOSED PAD (PIN 17) MUST BE SOLDERED
TO ELECTRICALLY ISOLATED PCB HEAT SINK
4267
4267
GN PACKAGE
16-LEAD NARROW PLASTIC SSOP
TJMAX = 150°C, θJA = 90°C/W
4267
4267I
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. *The temperature grades are identified by a label on the shipping container.
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VPORTN
VTURNON
VTURNOFF
VHYST
VCLAMP1mA
Supply Voltage
Maximum Operating Voltage
Signature Range
Classification Range
UVLO Turn-On Voltage
UVLO Turn-Off Voltage
PVCC Turn-On Voltage
PVCC Turn-Off Voltage
PVCC Hysteresis
PVCC Shunt Regulator Voltage
Voltage with Respect to VPORTP Pin
(Notes 4, 5, 6)
Voltage with Respect to PGND
Voltage with Respect to PGND
VTURNON – VTURNOFF
IPVCC = 1mA, VITH/RUN = 0V, Voltage
with Respect to PGND
●
– 57
V
● –1.5
– 9.5
V
● –12.5
– 21
V
● –34.8 –36.0 –37.2
V
● –29.3 –30.5 –31.5
V
● 7.8
8.7
9.2
V
● 4.6
5.7
6.8
V
● 1.5
3.0
V
● 8.3
9.4 10.3
V
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