参数资料
型号: LTC3407AIDD#PBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: DUAL SWITCHING CONTROLLER, PDSO10
封装: 3 X 3 MM, LEAD FREE, PLASTIC, MO-229WEED-2, DFN-10
文件页数: 13/16页
文件大小: 283K
代理商: LTC3407AIDD#PBF
LTC3407A
6
3407afa
PIN FUNCTIONS
SW2 (Pin 7): Regulator 2 Switch Node Connection to the
Inductor. This pin swings from VIN to GND.
POR (Pin 8): Power-On Reset. This common-drain logic
output is pulled to GND when the output voltage is not
within ±8.5% of regulation and goes high after 216 clock
cycles when both channels are within regulation.
RUN/SS2 (Pin 9): Regulator 2 Enable and Soft-Start Input.
Forcing this pin to VIN enables regulator 2, while forcing it
to GND causes regulator 2 to shut down. Connect external
BLOCK DIAGRAM
RC-Network with desired time-constant to enable soft-start
feature. This pin must be driven; do not oat.
VFB2 (Pin 10): Output Feedback. Receives the feedback
voltage from the external resistive divider across the output.
Nominal voltage for this pin is 0.6V.
Exposed Pad (GND) (Pin 11): Power Ground. Connect to
the (–) terminal of COUT, and (–) terminal of CIN. Must be
soldered to electrical ground on PCB.
1
2
9
10
8
3
4
11
5
+
+
+
+
EA
UVDET
OVDET
0.6V
7
0.65V
0.55V
+
0.65V
UV
OV
ITH
SWITCHING
LOGIC
AND
BLANKING
CIRCUIT
S
R
Q
RS
LATCH
BURST
+
ICOMP
IRCMP
ANTI
SHOOT-
THRU
BURST
CLAMP
SLOPE
COMP
EN
SLEEP
POR
COUNTER
0.6V REF
OSC
REGULATOR 2 (IDENTICAL TO REGULATOR 1)
PGOOD1
PGOOD2
SHUTDOWN
VIN
6
REGULATOR 1
SW1
GND
POR
GND
SW2
MODE/SYNC
VFB1
RUN/SS1
RUN/SS2
VFB2
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相关代理商/技术参数
参数描述
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