參數(shù)資料
型號: TPS62562DRVR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 0.6 A SWITCHING REGULATOR, 2250 kHz SWITCHING FREQ-MAX, PDSO6
封裝: 2 X 2 MM, 0.80 MM HEIGHT, GREEN, PLASTIC, SON-6
文件頁數(shù): 23/30頁
文件大小: 1664K
代理商: TPS62562DRVR
www.ti.com
SLVS815C – JANUARY 2008 – REVISED DECEMBER 2009
ELECTRICAL CHARACTERISTICS
Over full operating ambient temperature range, typical values are at TA = 25°C. Unless otherwise noted, specifications apply
for condition VIN = EN = 3.6 V. External components CIN = 4.7 μF 0603, COUT = 10 μF 0603, L = 2.2 μH; see the Parameter
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY
VIN
Input voltage range
2.5
5.5
V
IOUT
Output current
VIN 2.5 V to 5.5 V
600
mA
IOUT = 0 mA, PFM mode enabled
15
(MODE = GND), device not switching
μA
IOUT = 0 mA, PFM mode enabled
(MODE = GND), device switching, VOUT = 1.8 V,
18.5
IQ
Operating quiescent current
See (1)
IOUT = 0 mA, switching with no load
(MODE = VIN), PWM operation, VOUT = 1.8 V,
3.8
mA
VIN = 3 V
ISD
Shutdown current
EN = GND
0.5
μA
Falling
1.85
UVLO
Undervoltage lockout threshold
V
Rising
1.95
ENABLE, MODE
High-level input voltage, EN,
VIH
2 V
≤ VIN ≤ 5.5 V
1
VIN
V
MODE
Low-level input voltage, EN,
VIL
2 V
≤ VIN ≤ 5.5 V
0
0.4
V
MODE
IIN
Input bias current, EN, MODE
EN, MODE = GND or VIN
0.01
1
μA
POWER SWITCH
High side MOSFET on-resistance
252
492
RDS(on)
VIN = VGS = 3.6 V, TA = 25°C
m
Low side MOSFET on-resistance
194
391
Forward current limit, high and low
ILIMF
VIN = VGS = 3.6 V
0.8
1
1.2
A
side MOSFET
Thermal shutdown
Increasing junction temperature
140
TSD
°C
Thermal-shutdown hysteresis
Decreasing junction temperature
20
OSCILLATOR
fSW
Oscillator frequency
2 V
≤ VIN ≤ 5.5 V
2.25
MHz
OUTPUT
VOUT
Adjustable-output voltage range
0.85
VIN
V
VOUT
TPS62562 fixed output voltage
VIN ≥ 1.8 V
1.8
V
Vref
Reference voltage
600
mV
MODE = VIN, PWM operation, for
Feedback voltage, PWM mode
fixed-output-voltage versions VFB = VOUT,
–2.5%
0%
2.5%
2.5 V
≤ VIN ≤ 5.5 V, 0 mA ≤ IOUT ≤ 600 mA
(2)
VFB
MODE = GND, device in PFM mode, voltage
Feedback voltage, PFM mode
1%
positioning active(1)
Load regulation
PWM mode
–1
%/A
Time from active EN to reach 95% of VOUT
tStart Up
Start-up time
500
μs
nominal
tRamp
VOUT ramp-up time
Time to ramp from 5% to 95% of VOUT
250
μs
Ilkg
Leakage current into SW terminal
VIN = 3.6 V, VIN = VOUT = VSW, EN = GND
(3)
0.5
1
μA
(1)
In PFM mode, the internal reference voltage is set to typ. 1.01 × Vref. See the Parameter Measurement Information section.
(2)
For VIN = VOUT + 0.6 V
(3)
In fixed-output-voltage versions, the internal resistor divider network is disconnected from the FB terminal.
Copyright 2008–2009, Texas Instruments Incorporated
3
Product Folder Link(s): TPS62560 TPS62561 TPS62562
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