參數(shù)資料
型號: TPS650532RGET
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 5-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24
封裝: 4 X 4 MM, 0.50 MM PITCH, GREEN, PLASTIC, QFN-24
文件頁數(shù): 8/27頁
文件大?。?/td> 858K
代理商: TPS650532RGET
APPLICATION INFORMATION
TYPICAL APPLICATION CIRCUIT
L2
EN_DCDC1
VCC
FB_DCDC2
PGND2
AGND
EN_LDO1
EN_DCDC2
VLDO2
200mA LDO
VLDO2
VLDO3
DCDC1(I/O)
STEP- DOWN
CONVERTER
1 A
VINDCDC1/2
L1
FB_DCDC1
PGND1
DCDC2(core)
STEP- DOWN
CONVERTER
600mA
VLDO1
400mA LDO
VLDO3
200mA LDO
VDCDC1
VIN_LDO1
VIN_LDO2/3
Vbat
2.2 H
m
10 F
m
2.2 F
m
1 F
m
1W
TPS 65053
EN_LDO2
EN_LDO3
FB2
MODE
THRESHOLD
RESET
Reset
Cff
R 1
R 2
R 3
R 4
R7
R 8
R19
I/Ovoltage
4.7 F
m
R 5
R 6
VLDO1
FB1
Vbat
2.8 V
1.8 V
1.6 V
1.3 V
3.3 V
VDCDC1
R 9
R10
Vbat
2.2 F
m
10 F
m
22 F
m
2.2 H
m
Output Voltage Setting
V
OUT + VREF
1 )
R1
R2
(4)
R1 + R2
V
OUT
V
FB_DCDC1
* R2
(5)
SLVS754C – MARCH 2007 – REVISED SEPTEMBER 2009 ............................................................................................................................................. www.ti.com
The output voltage of the DCDC converters can be set by an external resistor network and can be calculated to:
with an internal reference voltage Vref, 0.6 V (typical).
It is recommended to set the total resistance of R1 + R2 to less than 1M
. The resistor network connects to the
input of the feedback amplifier; therefore, need some small feedforward capacitor in parallel to R1. A typical
value of 47pF is sufficient.
16
Copyright 2007–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS65053 TPS650531 TPS650532
相關PDF資料
PDF描述
TPS650531RGER 5-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24
TPS65055RSMR 1.8 A DUAL SWITCHING CONTROLLER, 2475 kHz SWITCHING FREQ-MAX, PQCC32
TPS65058RGET 1.8 A DUAL SWITCHING CONTROLLER, 2475 kHz SWITCHING FREQ-MAX, PQCC32
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