參數(shù)資料
型號(hào): TPS62000
廠(chǎng)商: Texas Instruments, Inc.
英文描述: "Adjustable
中文描述: 可調(diào)節(jié) 600mA 95% 高效降壓轉(zhuǎn)換器
文件頁(yè)數(shù): 20/26頁(yè)
文件大?。?/td> 460K
代理商: TPS62000
TPS62000, TPS62001, TPS62002, TPS62003
TPS62004, TPS62005, TPS62006, TPS62007, TPS62008
HIGHEFFICIENCY STEPDOWN LOW POWER DCDC CONVERTER
SLVS294D SEPTEMBER 2000 REVISED MARCH 2006
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
functional block diagram
PFM/PWM
Control Logic
Current Limit
Logic
_
+
Compensation
Soft
Start
Slope Compensation
PFM/PWM
Mode Select
PFM/PWM
Comparator
Error Amplifier
_
+
Current
Sense
Driver
Shoot-Through
Logic
_
+
Undervoltage
Lockout
Bias Supply
10
_
+
Vref = 0.45 V
R2
R1
R1 + R2
≈ 1 M
Power Good
Sync
+
Oscillator
_
+
Load Comparator
Current Sense
+
Offset
Antiringing
FB
N-Channel
Power MOSFET
P-Channel
Power MOSFET
L
PGND
EN
FB
PG
FC (See Note B)
VIN
GND
SYNC
ILIM
EN
(See
Note A)
NOTES: A. The adjustable output voltage version does not use the internal feedback resistor divider. The FB pin is directly connected to the
error amplifier.
B. Do not connect the FC pin to an external power source
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