參數(shù)資料
型號： LTC3776
廠商： Linear Technology Corporation
英文描述： 16-Bit Buffer/Driver With 3-State Outputs 48-TVSOP -40 to 85
中文描述： 雙2相，無檢測電阻同步控制器用于DDR / QDR存儲器終端
文件頁數(shù)： 2/28頁
文件大?。?/td> 429K
代理商： LTC3776
2
LTC3776
3776f
Input Supply Voltage (V
IN
) ........................ –0.3V to 10V
PLLLPF, RUN/SS, SYNC/SSEN,
V
REF
, SENSE1
+
, SENSE2
+
, V
FB2
IPRG1, IPRG2 Voltages................. –0.3V to (V
IN
+ 0.3V)
V
FB1
, I
TH1
, I
TH2
Voltages........................... –0.3V to 2.4V
SW1, SW2 Voltages .............. –2V to V
IN
+ 1V (10V Max)
PGOOD ..................................................... –0.3V to 10V
ABSOLUTEW
W
W
U
(Note 1)
TG1, TG2, BG1, BG2 Peak Output Current (<10
μ
s) ..... 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)
(LTC3776EGN) .....................................................300
°
C
PACKAGE/ORDER U
U
W
24 23 22 21 20 19
7
8
9
TOP VIEW
S
+
25
UF PACKAGE
24-LEAD (4mm
×
4mm) PLASTIC QFN
T
JMAX
= 125
°
C,
θ
JA
= 37
°
C/W
EXPOSED PAD (PIN 25) IS PGND
MUST BE SOLDERED TO PCB
10 11 12
6
5
4
3
2
1
13
14
15
16
17
18
I
TH1
IPRG2
PLLLPF
SGND
V
IN
V
REF
SYNC/SSEN
TG1
PGND
TG2
RUN/SS
BG2
V
F
I
S
P
B
V
F
I
T
P
S
S
+
P
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
PLLLPF
SGND
V
IN
V
REF
V
FB2
I
TH2
PGOOD
SENSE1
+
PGND
BG1
SYNC/SSEN
TG1
PGND
TG2
RUN/SS
BG2
PGND
SENSE2
+
SW2
ORDER PART
NUMBER
UF PART MARKING
3776
LTC3776EUF
T
JMAX
= 125
°
C,
θ
JA
= 130
°
C/W
ORDER PART
NUMBER
LTC3776EGN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
range, otherwise specifications are at T
A
= 25
°
C. V
IN
= 4.2V unless otherwise specified.
PARAMETER
Main Control Loops
Input DC Supply Current
Normal Operation
Shutdown
UVLO
Undervoltage Lockout Threshold
The
●
denotes specifications that apply over the full operating temperature
CONDITIONS
MIN
TYP
MAX
UNITS
(Note 4)
I
TH1
= I
TH2
= 1.3V
RUN/SS = 0V
V
IN
< UVLO Threshold –200mV
V
IN
Falling
V
IN
Rising
575
9
3
2.25
2.45
0.65
0.7
0.6
0.6
1.250
0.05
0.02
850
20
10
2.55
2.75
0.85
1
0.609
0.612
1.268
0.2
0.1
μ
A
μ
A
μ
A
V
V
V
μ
A
V
V
V
●
●
1.95
2.15
0.45
0.4
0.591
0.588
1.232
Shutdown Threshold at RUN/SS
Start-Up Current Source
Regulated Feedback Voltage (V
FB1
)
RUN/SS = 0V
0
°
C to 85
°
C (Note 5)
–40
°
C to 85
°
C
V
REF
= 2.5V
2.75V < V
IN
< 9.8V (Note 5)
●
Regulated Feedback Voltage (V
FB2
)
Output Voltage Line Regulation (V
FB1
)
Output Voltage Line Regulation (V
FB2
)
●
mV/V
mV/V
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3776EGN 制造商:Linear Technology 功能描述:DC DC Cntrlr Dual-OUT Sync Step Down 2.75V to 9.8V Input 24-Pin SSOP N
LTC3776EGN#PBF 功能描述:IC CTLR SYNC DUAL 24-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:控制器，DSP 輸入電壓:4.5 V ~ 25 V 輸出數(shù):2 輸出電壓:最低可調(diào)至 1.2V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:30-TSSOP 包裝:帶卷 (TR)
LTC3776EGN#TRPBF 功能描述:IC CNTRLR SYNC DUAL 24-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件
LTC3776EGNPBF 制造商:Linear Technology 功能描述:DC-DC Controller Dual Step-Down SSOP24
LTC3776EUF 制造商:Linear Technology 功能描述:DC DC Cntrlr Dual-OUT Sync Step Down 2.75V to 9.8V Input 24-Pin QFN EP
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