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參數(shù)資料
| 型號(hào)： | TS3410CX5RF |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.4 A SWITCHING REGULATOR, 1700 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | ROHS COMPLIANT, SOT-25, 5 PIN |
| 文件頁(yè)數(shù)： | 4/10頁(yè) |
| 文件大?。?/td> | 457K |
| 代理商： | TS3410CX5RF |
TS3410
1A / 1.4MHz Synchronous Buck Converter
3/10
Version: C08
Block Diagram
FB
EN
VIN
SW
GND
Over-Temperature and
Short-Circuit Protection
REF
Soft-Star
0.6V
+
-
+
Icomp
-
+
Isense
AMP
OSC
SLOPE
COMP
PWM
LOGIC
-
+
Izero
COMP
NON-OVERLAP
CONTROL
RESET
SET
Enable Logic
Function Description
Operation
TS3410 is a monolithic switching mode step-down DC-DC converter. It utilizes internal MOSFETs to achieve high
efficiency and can generate very low output voltage by using internal reference at 0.6V. It operates at a fixed
switching frequency, and uses the slope compensated current mode architecture. This step-down DC-DC
Converter supplies minimum 1000mA output current at input voltage range from 2.5V to 5.5V.
Current Mode PWM Control
Slope compensated current mode PWM control provides stable switching and cycle-by-cycle current limit for
excellent load and line transient responses and protection of the internal main switch (P-Ch MOSFET) and
synchronous rectifier (N-CH MOSFET). During normal operation, the internal P-Ch MOSFET is turned on for a
certain time to ramp the inductor current at each rising edge of the internal oscillator, and switched off when the
peak inductor current is above the error voltage. The current comparator, ICOMP, limits the peak inductor current.
When the main switch is off, the synchronous rectifier will be turned on immediately and stay on until either the
inductor current starts to reverse, as indicated by the current reversal comparator, IZERO, or the beginning of the
next clock cycle..
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