參數(shù)資料
型號(hào)： TPS62420DRCT
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 1.61 A DUAL SWITCHING CONTROLLER, 2500 kHz SWITCHING FREQ-MAX, PDSO10
封裝： 3 X 3 MM, GREEN, PLASTIC, SON-10
文件頁數(shù)： 23/37頁
文件大?。?/td> 1020K
代理商： TPS62420DRCT
www.ti.com
SLVS676C – JUNE 2006 – REVISED JUNE 2010
ELECTRICAL CHARACTERISTICS
VIN = 3.6V, VOUT = 1.8V, EN = VIN, MODE = GND, L = 2.2mH, COUT = 20mF, TA = –40°C to 85°C typical values are at TA =
25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
VIN
Input voltage range
2.5
6.0
V
One converter, IOUT = 0mA. PFM mode enabled
19
29
mA
(Mode = 0) device not switching,
EN1 = 1 OR EN2 = 1
Two converter, IOUT = 0mA. PFM mode enabled
32
48
mA
(Mode = 0) device not switching,
IQ
Operating quiescent current
EN1 = 1 AND EN2 = 1
IOUT = 0mA, MODE/DATA = GND, for one
23
mA
converter, VOUT 1.575V
(1)
IOUT = 0mA, MODE/DATA = VIN, for one
3.6
mA
converter, VOUT 1.575V
(1)
EN1, EN2 = GND, VIN = 3.6V
(2)
1.2
3
ISD
Shutdown current
mA
EN1, EN2 = GND, VIN ramped from 0V to 3.6V
(3)
0.1
1
Falling
1.5
2.35
VUVLO
Undervoltage lockout threshold
V
Rising
2.4
ENABLE EN1, EN2
VIH
High-level input voltage, EN1, EN2
1.2
VIN
V
VIL
Low-level input voltage, EN1, EN2
0
0.4
V
IIN
Input bias current, EN1, EN2
EN1, EN2 = GND or VIN
0.05
1.0
mA
DEF_1 INPUT
VDEF_1H
DEF_1 high level input voltage
DEF_1 pin is a digital input at fixed output voltage
09
VIN
V
options (TPS62421)
VDEF_1L
DEF_1 low level input voltage
0
0.4
IIN
Input biasd current DEF_1
DEF_1 = GND or VIN
0.01
1.0
mA
MODE/DATA
VIH
High-level input voltage,
1.2
VIN
V
MODE/DATA
VIL
Low-level input voltage,
0
0.4
V
MODE/DATA
IIN
Input bias current, MODE/DATA
MODE/DATA = GND or VIN
0.01
1.0
mA
VOH
Acknowledge output voltage high
Open drain, via external pullup resistor
VIN
V
VOL
Acknowledge output voltage low
Open drain, sink current 500mA
0
0.4
V
INTERFACE TIMING
tStart
Start time
2
ms
tH_LB
High time low bit, logic 0 detection
Signal level on MODE/DATA pin is > 1.2V
2
200
ms
tL_LB
Low time low bit, logic 0 detection
Signal level on MODE/DATA pin < 0.4V
2x
400
ms
tH_LB
tL_HB
Low time high bit, logic 1 detection
Signal level on MODE/DATA pin < 0.4V
2
200
ms
tH_LB
High time high bit, logic 1 detection
Signal level on MODE/DATA pin is > 1.2V
2x
400
ms
tL_HS
TEOS
End of Stream
TEOS
2
ms
tACKN
Duration of acknowledge condition
VIN 2.5V to 6V
400
520
ms
(MODE/DATE line pulled low by the
device)
tvalACK
Acknowledge valid time
2
ms
(1)
Device is switching with no load on the output, L = 3.3mH, value includes losses of the coil
(2)
These values are valid after the device has been already enabled one time (EN1 or EN2 = high) and supply voltage VIN has not
powered down.
(3)
These values are valid when the device is disabled (EN1 and EN2 low) and supply voltage VIN is powered up. The values remain valid
until the device has been enabled first time (EN1 or EN2 = high). After first enable, Note 3 becomes valid.
Copyright 2006–2010, Texas Instruments Incorporated
3
Product Folder Link(s): TPS62420 TPS62421
相關(guān)PDF資料
PDF描述
TPS62420DRC 1.61 A DUAL SWITCHING CONTROLLER, 2500 kHz SWITCHING FREQ-MAX, PDSO10
TPS62421DRCR 1.61 A DUAL SWITCHING CONTROLLER, 2500 kHz SWITCHING FREQ-MAX, PDSO10
TPS62510DRCRG4 1.5 A SWITCHING REGULATOR, 1700 kHz SWITCHING FREQ-MAX, PDSO10
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TPS62510DRC 1.5 A SWITCHING REGULATOR, 1700 kHz SWITCHING FREQ-MAX, PDSO10
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS62420DRCT 制造商:Texas Instruments 功能描述:DC/DC Converter IC 制造商:Texas Instruments 功能描述:IC, DUAL STEP-DOWN CONVERTER, SON-10
TPS62420DRCTG4 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Dual Adj 600mA & 1000mA 2.25MHz RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62420EVM-167 功能描述:電源管理IC開發(fā)工具 STEP DOWN CONVERTER RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS62420QDRCRQ1 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Dual,Adj,600mA&1000 mA,2.25MHz Step-Down RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62421DRCR 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 2.25MHz 600mA/1000 mA Dual Step Down RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
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