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LTC3736EGN-1#PBF 数据手册 - ADI(亚德诺)
制造商:
ADI(亚德诺)
封装:
SSOP
描述:
降压型 2.75V~9.8V 750kHz
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LTC3736EGN-1#PBF数据手册
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2
LTC3736-1
37361f
Input Supply Voltage (V
IN
) ........................ –0.3V to 10V
FREQ, RUN/SS, SSDIS,
TRACK, SENSE1
+
, SENSE2
+
,
IPRG1, IPRG2 Voltages ................. –0.3V to (V
IN
+ 0.3V)
V
FB1
, V
FB2
, I
TH1
, I
TH2
Voltages .................. –0.3V to 2.4V
SW1, SW2 Voltages ............ –2V to V
IN
+ 1V or 10V Max
PGOOD ..................................................... –0.3V to 10V
ABSOLUTE AXI U RATI GS
WWWU
(Note 1)
TG1, TG2, BG1, BG2 Peak Output Current (<10µs) ..... 1A
Operating Temperature Range (Note 2) ... –40°C to 85°C
Storage Temperature Range .................. –65°C to 125°C
Junction Temperature (Note 3) ............................ 125°C
Lead Temperature (Soldering, 10 sec)
(LTC3736EGN-1) .................................................. 300°C
PACKAGE/ORDER I FOR ATIO
UU
W
24 23 22 21 20 19
7 8 9
TOP VIEW
25
UF PACKAGE
24-LEAD (4mm × 4mm) PLASTIC QFN
10 11 12
6
5
4
3
2
1
13
14
15
16
17
18
I
TH1
IPRG2
FREQ
SGND
V
IN
TRACK
SSDIS
TG1
PGND
TG2
RUN/SS
BG2
V
FB1
IPRG1
SW1
SENSE1
+
PGND
BG1
V
FB2
I
TH2
PGOOD
SW2
SENSE2
+
PGND
T
JMAX
= 125°C, θ
JA
= 37°C/W
EXPOSED PAD (PIN 25) IS PGND
MUST BE SOLDERED TO PCB
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
GN PACKAGE
24-LEAD PLASTIC SSOP
24
23
22
21
20
19
18
17
16
15
14
13
SW1
IPRG1
V
FB1
I
TH1
IPRG2
FREQ
SGND
V
IN
TRACK
V
FB2
I
TH2
PGOOD
SENSE1
+
PGND
BG1
SSDIS
TG1
PGND
TG2
RUN/SS
BG2
PGND
SENSE2
+
SW2
ORDER PART
NUMBER
UF PART MARKING
3736-1
LTC3736EUF-1
T
JMAX
= 125°C, θ
JA
= 130°C/ W
ORDER PART
NUMBER
LTC3736EGN-1
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The ● denotes specifications that apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. V
IN
= 4.2V unless otherwise specified.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Main Control Loops
Input DC Supply Current (Note 4)
Normal Mode 500 850 µA
Shutdown RUN/SS = 0V 9 20 µA
UVLO V
IN
< UVLO Threshold 3 10 µA
Undervoltage Lockout Threshold V
IN
Falling ● 1.95 2.25 2.55 V
V
IN
Rising ● 2.15 2.45 2.75 V
Shutdown Threshold at RUN/SS 0.45 0.65 0.85 V
Start-Up Current Source RUN/SS = 0V 0.5 0.7 1 µA
Regulated Feedback Voltage 0°C to 85°C (Note 5) 0.591 0.6 0.609 V
–40°C to 85°C
● 0.588 0.6 0.612 V
Output Voltage Line Regulation 2.75V < V
IN
< 9.8V (Note 5) 0.05 0.2 mV/V
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