参数资料
型号: LTC3240EDC-2.5#TRPBF
厂商: Linear Technology
文件页数: 2/12页
文件大小: 0K
描述: IC REG MULTI CONFIG 2.5V 6DFN
标准包装: 2,500
类型: 降压(降压),升压(升压),切换电容(充电泵)
输出类型: 固定
输出数: 1
输出电压: 2.5V
输入电压: 1.8 V ~ 5.5 V
PWM 型: Burst Mode?
频率 - 开关: 1.2MHz
电流 - 输出: 150mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 6-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 6-DFN-EP(2x2)
LTC3240-3.3/LTC3240-2.5
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
V IN to GND ................................................... –0.3V to 6V
TOP VIEW
V OUT to GND ............................................. –0.3V to 5.5V
? S ? H ? D ? N to GND................................ –0.3V to (V IN + 0.3V)
V OUT Short-Circuit Duration ............................. Inde?nite
Operating Temperature Range (Note 2) ... –40°C to 85°C
GND 1
V IN 2
V OUT 3
7
6 SHDN
5 C –
4 C +
Storage Temperature Range................... –65°C to 125°C
Maximum Junction Temperature .......................... 125°C
DC PACKAGE
6-LEAD (2mm × 2mm) PLASTIC DFN
T JMAX = 125°C, θ JA = 80°C/W (NOTE 4)
EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB
ORDER PART NUMBER
LTC3240EDC-3.3
LTC3240EDC-2.5
DC PART MARKING
LBXJ
LCBP
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 speci?ed with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C, ? S ? H ? D ? N = V IN , C FLY = 1μF, C IN = 1μF, C OUT = 4.7μF unless otherwise noted.
SYMBOL
V IN
PARAMETER
Input Voltage Range
CONDITIONS
MIN
1.8
TYP
MAX
5.5
UNITS
V
V OUT
I IN
I ? S ? H ? D ? N
Output Voltage Range
LTC3240-3.3
LTC3240-2.5
No Load Input Current
Shutdown Current
1.8V ≤ V IN ≤ 2.5V, I OUT < 40mA
2.5V ≤ V IN ≤ 5.5V, I OUT < 150mA
1.8V ≤ V IN ≤ 5.5V, I OUT < 60mA
I OUT = 0, 1.8V ≤ V IN ≤ 5.5V
? S ? H ? D ? N = 0V, V OUT = 0V
3.168
3.168
2.4
3.3
3.3
2.5
65
0.1
3.432
3.432
2.6
100
1
V
V
V
μA
μA
η
Ef?ciency
LTC3240-3.3
LTC3240-2.5
V IN = 2.5V, I OUT = 100mA
V IN = 3.7V, I OUT = 100mA
V IN = 2V, I OUT = 50mA
V IN = 3V, I OUT = 50mA
64
87
63
83
%
%
%
%
V IH
V IL
? S ? H ? D ? N Input High Voltage
? S ? H ? D ? N Input Low Voltage
1.8V ≤ V IN ≤ 5.5V
1.8V ≤ V IN ≤ 5.5V
1.2
0.4
V
V
I IH
I IL
I LIM
? S ? H ? D ? N Input Current
? S ? H ? D ? N Input Current
Output Current Limit
V ? S ? H ? D ? N = V IN = 5.5V
V ? S ? H ? D ? N = 0V
V IN = 3.7V, V OUT = 0V Step-Down Mode
–1
–1
450
1
1
μA
μA
mA
V IN = 2.4V, V OUT = 0V Step-Up Mode
270
mA
t ON
V OUT Turn-On Time
From the Rising Edge of ? S ? H ? D ? N to 90% of V OUT
V IN = 2.5V, R LOAD = 66 Ω
V IN = 3.7V, R LOAD = 66 Ω
0.5
0.4
ms
ms
Step-Up Mode
I BURST
V RIPPLE
Burst Mode Threshold V IN = 2.4V
Output Ripple I OUT = 100mA, V OUT = 2.5V or 3.3V
15
20
mA
mV P-P
f OSC
Switching Frequency V IN = 2.4V
0.6
1.2
1.8
MHz
V RIPPLE(BURST)
Burst Mode ? Output Ripple V IN = 2.4V
20
mV P-P
Burst Mode is a registered trademark of Linear Technology Corporation.
3240fb
2
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