参数资料
型号: LTC3802EUH#PBF
厂商: Linear Technology
文件页数: 2/28页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 32-QFN
标准包装: 73
系列: PolyPhase®
PWM 型: 电压模式
输出数: 2
频率 - 最大: 850kHz
占空比: 92%
电源电压: 3 V ~ 30 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 32-WFQFN 裸露焊盘
包装: 管件
LTC3802
ABSOLUTE
AXI U RATI GS
(Note 1)
Supply Voltage
V CC , PV CC ............................................................. 7V
BOOSTn .............................................................. 37V
BOOSTn – SWn .................................................... 7V
SWn ........................................................ –1V to 30V
Input Voltage
V INFF .................................................................... 30V
FBn, CMPINn, FBT, PLLIN, FCB,
RUN/SS, PGOOD, PLLLPF, PHASEMD,
EXTREF, I MAX n .......................... –0.3V to V CC + 0.3V
PACKAGE/ORDER I FOR ATIO
Extended Commercial
Operating Temperature Range (Note 2) .. –40 ° C to 85 ° C
Storage Temperature Range
LTC3802EGN ................................... – 65 ° C to 150 ° C
LTC3802EUH ................................... – 65 ° C to 125 ° C
Lead Temperature (Soldering, 10 sec)
LTC3802EGN Only ........................................... 300 ° C
TOP VIEW
ORDER PART
TOP VIEW
ORDER PART
PV CC
1
28 BG2
NUMBER
NUMBER
BG1
BOOST1
TG1
SW1
PGND
2
3
4
5
6
27 BOOST2
26 TG2
25 SW2
24 PLLIN
23 PLLLPF
LTC3802EGN
SW1 1
PGND 2
PGND 3
32 31 30 29 28 27 26 25
24 PGND
23 PGND
22 PLLIN
LTC3802EUH
I MAX1
FBT
7
8
22 I MAX2
21 CMPIN2
I MAX1 4
FBT 5
CMPIN1 6
33
21 PLLLPF
20 I MAX2
19 CMPIN2
CMPIN1 9
COMP1 10
FB1 11
SGND 12
20 V CC
19 COMP2
18 FB2
17 PHASEMD
COMP1 7
FB1 8
9 10 11 12 13 14 15 16
18 V CC
17 COMP2
UH PART
MARKING
3802
FCB 13
RUN/SS 14
GN PACKAGE
16 V INFF
15 PGOOD
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
28-LEAD PLASTIC SSOP
T JMAX = 125 ° C, θ JA = 110 ° C/W
T JMAX = 125 ° C, θ JA = 34 ° C/W
EXPOSED PAD (PIN 33) IS GND
MUST BE SOLDERED TO PCB
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range. (Note 3) V CC = PV CC = BOOST = 5V, unless otherwise specified.
SYMBOL
V CC
PARAMETER
V CC Supply Voltage
CONDITIONS
q
MIN
3
TYP
5
MAX
6
UNITS
V
PV CC
BV CC
V UVLO
I VCC
PV CC Supply Voltage
BOOST Pin Voltage
Positive Undervoltage Lockout
V CC Supply Current
(Note 4)
V BOOST – V SW (Note 4)
Measured at V CC
Measured at V INFF
V FB = V COMP
V RUN/SS = 0V, PLLIN Floating
q
q
q
q
2.2
2.2
5
5
2.5
2.5
6.5
100
6
6
2.8
2.8
9
150
V
V
V
V
mA
μ A
3802f
2
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