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参数资料
| 型号： | LTC3459EDCB#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.09 A SWITCHING REGULATOR, PDSO6 |
| 封装： | 2 X 3 MM, LEAD FREE, PLASTIC, MO-229, DFN-6 |
| 文件页数： | 9/12页 |
| 文件大小： | 216K |
| 代理商： | LTC3459EDCB#PBF |
LTC3459
6
3459fc
PIN FUNCTIONS
VIN (Pin 1/Pin 6/Pin 6): Input Supply Pin. Bypass VIN with
a low ESR, ESL ceramic capacitor of at least 1μF.
VOUT (Pin 2/Pin 2/Pin 5): Regulated Output Voltage of
the Boost Regulator. Bypass VOUT with a low ESR, ESL
ceramic capacitor between 2.2μF and 10μF. VOUT ripple
increases with smaller capacitors.
SHDN(Pin3/Pin1/Pin4):MasterShutdownInput.Driving
SHDN low disables all IC functions and reduces quiescent
current from the battery to less than 1μA. This pin must
be pulled above 1V to enable the IC.
FB (Pin 4/Pin 3/Pin 3): Input to the Burst Mode Comparator.
An external resistor divider connected between VOUT,
GND and this pin sets the output voltage to:
VOUT = 1.22(1 + R1/R2)
GND (Pin 5/Pin 5/Pin 2): Signal and Power Ground. Provide
a short, direct PCB path between GND and the (–) side of
the lter capacitors on VIN and VOUT.
SW (Pin 6/Pin 4/Pin 1): Switch Pin. Connect a 15μH to
33μH inductor between SW and VIN.KeepPCBtracelengths
as short and wide as possible to reduce EMI and voltage
overshoot. If the inductor current falls to zero, the internal
P-channel MOSFET synchronous rectier is turned off to
prevent reverse charging of the inductor.
Exposed Pad (Pin 7/Pin 7, DC and DCB Packages Only):
Ground. The Exposed Pad must be soldered to PCB.
(DC/DCB/S6 Packages)
BLOCK DIAGRAM
–
+
–
+
VIN
IZERO
DETECT
IZO
IPEAK
tOFF
VCC
VOUT
SLEEP
DELAY
IPEAK
DETECT
tOFF
TIMER
VSELECT
VBEST
P-DRIVE
HYSTCOMP
N-DRIVE
SW1
SW
VOUT
FB
R2
SD
SDB
3459 BD
R1
R
SD
THERMAL
SD
VSELECT
VBEST
VCC
P/~N
IZO
SDB
SD
N-DRIVE
P-DRIVE
QB
Q
QB
Q
RD
S
RD
S
QB
Q
REFERENCE
VCC
SHDN
GND
REFOK
OFF ON
相关PDF资料 |
PDF描述 |
|---|---|
| LTC3459ES6#PBF | 0.09 A SWITCHING REGULATOR, PDSO6 |
| LTC3520IUF#TRPBF | DUAL SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC24 |
| LTC3520IUF#PBF | DUAL SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC24 |
| LTC3539EDCB#PBF | 2.6 A SWITCHING REGULATOR, 1300 kHz SWITCHING FREQ-MAX, PDSO8 |
| LTC3541EDD#TR | 1.25 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3459EDCB-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:10V Micropower Synchronous Boost Converter |
| LTC3459EDCPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:10V Micropower Synchronous Boost Converter |
| LTC3459EDC-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:10V Micropower Synchronous Boost Converter |
| LTC3459EDC-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:10V Micropower Synchronous Boost Converter |
| LTC3459ES6 | 制造商:LINER 制造商全称:Linear Technology 功能描述:10V Micropower Synchronous Boost Converter in ThinSOT |
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