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LTC3370 数据表(PDF) 4 Page - Linear Technology

部件名 LTC3370
功能描述  60V Low IQ Buck Controller Plus 4-Channel 8A Configurable Buck DC/DCs
PDF  44 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC3370 数据表(HTML) 4 Page - Linear Technology

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LTC3372
4
Rev. A
For more information www.analog.com
ORDER INFORMATION
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at TA = 25°C (Note 2), VIN = 12V, VRUN = 5V, VOUT = VINA-H = 3.3V unless
otherwise noted.
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3372EUK#PBF
LTC3372EUK#TRPBF
LTC3372UK
48-Lead (7mm × 7mm) Plastic QFN
–40°C to 125°C
LTC3372IUK#PBF
LTC3372IUK#TRPBF
LTC3372UK
48-Lead (7mm × 7mm) Plastic QFN
–40°C to 125°C
LTC3372HUK#PBF
LTC3372HUK#TRPBF
LTC3372UK
48-Lead (7mm × 7mm) Plastic QFN
–40°C to 150°C
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
VIN
VIN Pin Operating Voltage Range
4.5
60
V
IQ (Forced
Continuous/
Pulse-
Skipping
Mode)
No-Load VIN Pin DC Current
No-Load VOUT/EXTVCC Pin + SENSE– Pin
DC Current
PLL/MODE=INTVCC or INTVCC/2
Run = VIN
EN1-4 = GND
VOUTPRG =
INTVCC
(5V VOUT)
7
1450
µA
µA
No-Load VIN Pin DC Current
No-Load VOUT/EXTVCC Pin + SENSE– Pin
DC Current
VOUTPRG =
GND
(3.3V VOUT)
1300
130
µA
µA
IQ (Burst
Mode)
No-Load VIN Pin DC Current
No-Load VOUT/EXTVCC Pin DC Current
HV Controller On Only
HV Controller and One LV Regulator On
Additional IQ, per LV Regulator On
Additional IQ, Watchdog On (Float CT Pin)
Additional IQ, TEMP On (Float TEMP Pin)
No-Load SENSE– Pin DC Current
PLL/MODE = GND
(Burst Mode)
VIN = 12V, VINA-H = VOUT (LV
Regulators Powered from HV
Regulator’s Output), No Load on
VOUT or VOUT1-4.
CT = TEMP = INTVCC (Watchdog
and TEMP Monitor Off, Unless
Otherwise Specified)
VOUTPRG =
INTVCC
(5V VOUT)
l
l
l
4
20
52
+26
+7
+15
0.5
10
46
74
+39
+12
2
µA
µA
µA
µA
µA
µA
µA
No-Load VIN Pin DC Current
HV Controller On Only
HV Controller and LV Regulator On
Additional IQ, Watchdog On (Float CT Pin)
Additional IQ, TEMP On (Float TEMP Pin)
No-Load VOUT/EXTVCC Pin DC Current
HV Controller On Only
HV Controller and One LV Regulator On
Additional IQ, per LV Regulator On
Additional IQ, Watchdog On (Float CT Pin)
Additional IQ, TEMP On (Float TEMP Pin)
VOUTPRG =
GND
(3.3V VOUT)
l
l
22
23
+1
+2
4
29
+23
+6
+13
42
33
+4.2
8.5
39
+33
+8
µA
µA
µA
µA
µA
µA
µA
µA
µA
IQ
(Note 4)
(Burst
Mode)
Total No-Load Input Supply Current
HV Controller On Only
HV Controller and One LV Regulator On
Additional IQ, per LV Regulator On
Additional IQ, Watchdog On (Float CT Pin)
Additional IQ, TEMP On (Float TEMP Pin)
PLL/MODE = GND
VIN = 12V, VINA-H = VOUT (LV
Regulators Powered from HV
Regulator’s Output), No Load on
VOUT or VOUT1-4
CT = TEMP = INTVCC (Watchdog
and TEMP Monitor Off, unless
otherwise specified)
VOUTPRG =
INTVCC
(5V VOUT)
l
15
31
+14
+4
+8
35
45
+20
+6
µA
µA
µA
µA
µA
Total No-Load Input Supply Current
HV Controller On Only
HV Controller and One LV Regulator On
Additional IQ, per LV Regulator On
Additional IQ, Watchdog On (Float CT Pin)
Additional IQ, TEMP On (Float TEMP Pin)
VOUTPRG =
GND
(3.3V VOUT)
l
23
33
+9
+3
+7
46
46
+12
+7
µA
µA
µA
µA
µA
ISD
VIN Pin Current in Shutdown
RUN = EN1-4 = GND
3.5
8
μA



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