參數(shù)資料
型號: LMK316BJ475ML
廠商: AUK Corp
英文描述: Low Drop Output Voltage Regulator
中文描述: 低壓差穩(wěn)壓器輸出電壓
文件頁數(shù): 18/23頁
文件大?。?/td> 430K
代理商: LMK316BJ475ML
TPS60400, TPS60401, TPS60402, TPS60403
UNREGULATED 60-mA CHARGE PUMP VOLTAGE INVERTER
SLVS324
JULY 2001
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
shutting down the TPS6040x
If shutdown is necessary, use the circuit in Figure 32. The output resistance of the TPS6040x will typically be
15
plus two times the output resistance of the buffer.
Connecting multiple buffers in parallel can reduce the output resistance of the buffer driving the IN pin.
TPS60400
OUT
C1+
IN
C1
GND
1
2
3
5
4
C(fly)
1
μ
F
CO
1
μ
F
CI
1
μ
F
VO (
VI)
GND
VI
GND
SDN
Figure 32. Shutdown Control
GaAs supply
A solution for a
2.7-V/3-mA GaAs bias supply is proposed in Figure 33. The input voltage of 3.3 V is first inverted
with a TPS60403 and stabilized using a TLV431 low-voltage shunt regulator. Resistor R
P
with capacitor C
P
is
used for filtering the output voltage.
TPS60400
OUT
C1+
IN
C1
GND
1
2
3
5
4
C(fly)
0.1
μ
F
CO
1
μ
F
TLV431
CI
0.1
μ
F
VO (
2.7 V/3 mA)
GND
VI (3.3 V)
GND
RP
R2
R1
CP
Figure 33. GaAs Supply
V
O
1
R1
R2
V
ref
R1
II(ref)
A 0.1-
μ
F capacitor was selected for C
(fly)
. By this, the output resistance of the inverter is about 52
.
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