參數(shù)資料
型號: LTC3537EUD#TRPBF
廠商: Linear Technology
文件頁數(shù): 3/22頁
文件大?。?/td> 314K
描述: IC REG DL BST/LINEAR SYNC 16-QFN
標(biāo)準(zhǔn)包裝: 2,500
拓撲: 升壓(升壓)同步(1),線性(LDO)(1)
功能: 任何功能
輸出數(shù): 2
頻率 - 開關(guān): 2.2MHz
電壓/電流 - 輸出 1: 1.5 V ~ 5.25 V,100mA
電壓/電流 - 輸出 2: 0.6 V ~ 5 V,100mA
帶 LED 驅(qū)動器:
帶監(jiān)控器:
帶序列發(fā)生器:
電源電壓: 0.68 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 16-QFN-EP(3x3)
包裝: 帶卷 (TR)
LTC3537
3
3537fd
 ELECTRICAL CHARACTERISTICS
 
The l denotes the speci cations which apply over the full operating
temperature range, otherwise speci cations are at T
A
 = 25癈. (Note 2) V
INB
 = 1.2V, V
OUTB
 = 3.3V, unless otherwise noted.
SYMBOL  PARAMETER
CONDITIONS
MIN   TYP   MAX   UNITS
R
NMOS
NMOS Switch On Resistance  V
OUTB
 = 1.8V
V
OUTB
 = 3.3V
V
OUTB
 = 5V
0.8
0.4
0.3
?/DIV>
?/DIV>
?/DIV>
R
PMOS
PMOS Switch On Resistance  V
OUTB
 = 1.8V
V
OUTB
 = 3.3V
V
OUTB
 = 5V
1
0.6
0.4
?/DIV>
?/DIV>
?/DIV>
I
LIM
NMOS Current Limit
(Note 4)
l
600   750
mA
t
LIMDELAY
Current Limit Delay Time to
Output
(Note 3)
40
ns
Max Duty Cycle
V
FBB
 = 1.15V
l   87    92
%
Min Duty Cycle
V
FBB
 = 1.3V
l
0
%
f
SW
Switching Frequency
l   2    2.2    2.4    MHz
V
ENBSTH
ENBST Input High Voltage
0.8
V
V
ENBSTL
ENBST Input Low Voltage
0.3
V
I
ENBSTIN
ENBST Input Current
V
ENBST
 = 5.5V
1.5
V
MODEH
MODE Input High Voltage
0.8
V
V
MODEL
MODE Input Low Voltage
0.3
V
I
MODEIN
MODE Input Current
V
MODE
 = 5.5V
1.5
t
SS
Soft-Start Time
0.5
ms
V
FBLBI
LBI Feedback Voltage
Falling Threshold
530   553   575
mV
LBI Hysteresis Voltage
35
mV
I
LBIIN
LBI Input Current
V
LBI
 = 1V
10    50
nA
V
LBOLOW
LBO Voltage Low
I
LBO
 = 5mA
200
mV
I
LBOLEAK
LBO Leakage Current
V
LBO
 = 5.5V
0.01    1
V
PGDBLOW
PGDB Voltage Low
I
PGDB
 = 5mA
200
mV
I
PGDBLEAK
PGDB Leakage Current
V
PGDB
 = 5.5V
0.01    1
PGDB Trip Point Voltage    V
FBB
 Rising
94
% V
OUTB
PGDB Hysteresis
6
%
SYMBOL  PARAMETER
CONDITIONS
MIN   TYP   MAX   UNITS
LDO Regulator
V
INL
Input Voltage Range
1.8
5.5
V
V
OLDO
Output Voltage Range
I
LOAD
 = 100mA
V
FBL
5
V
I
OUTMAX
Max Output Current
l
100
mA
V
FBL
Feedback Voltage
l
590   600   610
mV
Line Regulation
V
INL
 = 1.8V to 5.5V
0.1
%
Load Regulation
I
LOAD
 = 10mA to 90mA
0.4
%
V
DROPOUT
Dropout Voltage
I
O
 = 50mA
100
mV
The l denotes the speci cations which apply over the full operating temperature range, otherwise speci cations are at T
A
 = 25癈. (Note 2)
V
INL
 = 3.3V, V
OLDO
 = 3V, unless otherwise noted.
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