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LTC3240-3.3 数据表(PDF) 5 Page - Linear Technology

部件名 LTC3240-3.3
功能描述  3.3V/2.5V Step-Up/ Step-Down Charge Pump DC/DC Converter
Download  12 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC3240-3.3 数据表(HTML) 5 Page - Linear Technology

  LTC3240-3.3_15 Datasheet HTML 1Page - Linear Technology LTC3240-3.3_15 Datasheet HTML 2Page - Linear Technology LTC3240-3.3_15 Datasheet HTML 3Page - Linear Technology LTC3240-3.3_15 Datasheet HTML 4Page - Linear Technology LTC3240-3.3_15 Datasheet HTML 5Page - Linear Technology LTC3240-3.3_15 Datasheet HTML 6Page - Linear Technology LTC3240-3.3_15 Datasheet HTML 7Page - Linear Technology LTC3240-3.3_15 Datasheet HTML 8Page - Linear Technology LTC3240-3.3_15 Datasheet HTML 9Page - Linear Technology Next Button
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background image
LTC3240-3.3/LTC3240-2.5
5
3240fb
Load Transient Response
(LTC3240-3.3)
Output Noise/Ripple
(LTC3240-2.5)
Load Transient Response
(LTC3240-2.5)
PI FU CTIO S
GND (Pin 1): Ground. This pin should be tied to a ground
plane for best performance.
VIN (Pin 2): Input Supply Voltage. VIN should be bypassed
with a 1
μF or greater, low ESR ceramic capacitor.
VOUT (Pin 3): Regulated Output Voltage. VOUT should be
bypassed with a 4.7
μForgreater,lowESRceramiccapaci-
tor as close to the pin as possible for best performance.
C+ (Pin 4): Flying Capacitor Positive Terminal.
C(Pin 5): Flying Capacitor Negative Terminal.
⎯S⎯H⎯D⎯N(Pin6):ActiveLowShutdownInput.Alowon⎯S⎯H⎯D⎯N
disables the LTC3240-3.3/LTC3240-2.5. This pin is a high
impedance CMOS input pin which must be driven with valid
logic levels. This pin must not be allowed to float.
Exposed Pad (Pin 7): Ground. The exposed pad must be
soldered to PCB ground to provide electrical contact and
optimum thermal performance.
TYPICAL PERFOR A CE CHARACTERISTICS (TA = 25°C, CFLY = CIN = 1µF, COUT = 4.7µF
unless otherwise noted)
VOUT
20mV/DIV
AC COUPLED
60mA
10mA
ILOAD
10
µs/DIV
3240 G15
VIN = 3.7V
ILOAD = 10mA TO 60mA
LDO MODE
VOUT
20mV/DIV
AC COUPLED
500ns/DIV
3240 G16
VIN = 2.4V
ILOAD = 100mA
VOUT
20mV/DIV
AC COUPLED
50mA
10mA
ILOAD
10
µs/DIV
3240 G17
VIN = 2.4V
ILOAD = 10mA TO 50mA
Burst Mode
OPERATION
CONST FREQUENCY
MODE


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