參數(shù)資料
型號(hào): TPS62261DRV
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 穩(wěn)壓器
英文描述: 1.2 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO6
封裝: 2 X 2 MM, 0.80 MM HEIGHT, PLASTIC, SON-6
文件頁(yè)數(shù): 28/32頁(yè)
文件大小: 1304K
代理商: TPS62261DRV
www.ti.com
PARAMETER MEASUREMENT INFORMATION
V IN
GND
EN
FB
SW
TPS62260DVR
R1
R2
VOUT
MODE
C
4.7 F
IN
m
L
2.2 H
m
C
22pF
1
C
10 F
OUT
m
L:LPS30152.2 H,110m
C
GRM188R60J475K4.7 FMurata0603size
C
m
W
m
IN
OUT GRM188R60J106M10
FMurata0603size
m
TYPICAL CHARACTERISTICS
SLVS763B – JUNE 2007 – REVISED FEBRUARY 2008
Table of Graphs
FIGURE
Output Current VOUT = 1.8 V, Power Save Mode, MODE = GND
Output Current VOUT = 1.8 V, PWM Mode, MODE = VIN
Output Current VOUT = 3.3 V, PWM Mode, MODE = VIN
η
Efficiency
Output Current VOUT = 3.3 V, Power Save Mode, MODE = GND
Output Current
Output Current
at 25
°C, V
OUT = 1.8 V, Power Save Mode, MODE = GND
at –40
°C, V
OUT = 1.8 V, Power Save Mode, MODE = GND
at 85
°C, V
OUT = 1.8 V, Power Save Mode, MODE = GND
Output Voltage Accuracy
at 25
°C, V
OUT = 1.8 V, PWM Mode, MODE = VIN
at –40
°C, V
OUT = 1.8 V, PWM Mode, MODE = VIN
at 85
°C, V
OUT = 1.8 V, PWM Mode, MODE = VIN
Typical Operation
PWM Mode, VOUT = 1.8 V
MODE Pin Transition From PFM to Forced PWM Mode at light load
Mode Transition
MODE Pin Transition From Forced PWM to PFM Mode at light load
Start-up Timing
Forced PWM Mode , VOUT = 1.5 V, 50 mA to 200 mA
Forced PWM Mode , VOUT = 1.5 V, 200 mA to 400 mA
PFM Mode to PWM Mode, VOUT = 1.5 V, 150 A to 400 mA
PWM Mode to PFM Mode, VOUT = 1.5 V, 400 mA to 150 A
Load Transient
PFM Mode, VOUT = 1.5 V, 1.5 mA to 50 mA
PFM Mode, VOUT = 1.5 V, 50 mA to 1.5 mA
PFM Mode to PWM Mode, VOUT = 1.8 V, 50 mA to 250 mA
PFM Mode to PWM Mode, VOUT = 1.5 V, 50 mA to 400 mA
PWM Mode to PFM Mode, VOUT = 1.5 V, 400 mA to 50 mA
PFM Mode, VOUT = 1.8 V, 50 mA
Line Transient
PFM Mode, VOUT = 1.8 V, 250 mA
PFM VOUT Ripple, VOUT = 1.8 V, 10 mA, L = 2.2H, COUT = 10F
Typical Operation
PFM VOUT Ripple, VOUT = 1.8 V, 10 mA, L = 4.7H, COUT = 10F
Shutdown Current into VIN
vs Input Voltage, (TA = 85°C, TA = 25°C, TA = -40°C)
Copyright 2007–2008, Texas Instruments Incorporated
5
Product Folder Link(s): TPS62260 TPS62261 TPS62262 TPS62263
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