参数资料
型号: LTC3709EUH#TRPBF
厂商: Linear Technology
文件页数: 2/24页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 32-QFN
标准包装: 2,500
系列: PolyPhase®
PWM 型: 电流模式
输出数: 1
频率 - 最大: 200kHz
占空比: 90%
电源电压: 5 V ~ 36 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: 带卷 (TR)
LTC3709
ABSOLUTE
AXI U RATI GS
(Note 1)
Input Supply Voltage (V CC , DRV CC ) ............ 7V to – 0.3V
Boosted Topside Driver Supply Voltage
(BOOST1, BOOST2) .................................. 37V to – 0.3V
Switch Voltage (SW1, 2) ............................. 31V to – 1V
SENSE1 + , SENSE2 + Voltages ....................... 31V to – 1V
SENSE1 – , SENSE2 – Voltages .................... 10V to – 0.3V
I ON Voltage ............................................... 31V to –0.3V
(BOOST – SW) Voltages ..............................7V to – 0.3V
RUN/SS, PGOOD Voltages .......................... 7V to – 0.3V
TRACK Voltage ............................................7V to – 0.3V
I TH Voltage ............................................... 2.7V to – 0.3V
V FB Voltage .............................................. 2.7V to – 0.3V
INTLPF, EXTLPF Voltages ........................ 2.7V to – 0.3V
V OS+ , V OS– Voltages ................................... 7V to – 0.3V
FCB Voltage ................................................ 7V to – 0.3V
Operating Temperature Range (Note 4) .. – 40 ° C to 85 ° C
Junction Temperature (Note 2) ............................ 125 ° C
Storage Temperature Range
UH Package ..................................... – 65 ° C to 125 ° C
G Package ....................................... – 65 ° C to 150 ° C
V RNG Voltage ................................. V CC + 0.3V to – 0.3V
PACKAGE/ORDER I FOR ATIO
TOP VIEW
NC
1
36 BOOST1
TOP VIEW
32 31 30 29 28 27 26 25
PGOOD
I ON
FCB
V RNG
2
3
4
5
25 TG1
34 SW1
33 SENSE1 +
32 SENSE1 –
RUN/SS 1
I TH 2
24 SENSE1
23 PGND1
RUN/SS
I TH
6
7
31 PGND1
30 BG1
V FB
14
V OS
V FB 3
TRACK 4
SGND 5
SGND 6
V OS– 7
DIFFOUT 8
33
9 10 11 12 13 14 15 16
22 BG1
21 DRV CC
20 BG2
19 PGND2
18 SENSE2 –
17 V CC
8
TRACK 9
SGND 10
SGND 11
V OS– 12
DIFFOUT 13
+
29 DRV CC
28 BG2
27 PGND2
26 SENSE2 –
25 V CC
24 SENSE2 +
23 SW2
EXTLPF 15
22 TG2
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
EXPOSED PAD IS SGND (PIN 33)
MUST BE SOLDERED TO PCB
INTLPF 16
NC 17
NC 18
21 BOOST2
20 NC
19 NC
T JMAX = 125 ° C, θ JA = 34 ° C/ W
G PACKAGE
36-LEAD PLASTIC SSOP
T JMAX = 125 ° C, θ JA = 95 ° C/ W
ORDER PART NUMBER
UH PART MARKING
ORDER PART NUMBER
LTC3709EG
LTC3709EUH
3709
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.
3709fb
2
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