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LM26001 Folha de dados(PDF) 6 Page - Texas Instruments

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Nome de Peças LM26001
Descrição Electrónicos  LM26001/-Q1 1.5-A Switching Regulator With High-Efficiency Sleep Mode
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Fabricante Electrônico  TI [Texas Instruments]
Página de início  http://www.ti.com
Logo TI - Texas Instruments

LM26001 Folha de dados(HTML) 6 Page - Texas Instruments

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LM26001, LM26001-Q1
SNVS430I – MAY 2006 – REVISED MARCH 2015
www.ti.com
Electrical Characteristics (continued)
Unless otherwise stated, Vin=12 V. Minimum and Maximum limits are ensured through test, design, or statistical correlation.
Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only.
(1)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ISS_Source
Soft-start source current
2.2
µA
–40°C
≤ TJ ≤ 125°C
1.5
4.6
Vbias_th
VBIAS On Voltage
Specified at IBIAS = 92.5% of full
2.64
2.9
3.07
V
value
SWITCHING
RDS(ON)
Switch on Resistance
Isw = 1A
0.2
Isw = 1A, –40°C
≤ TJ ≤ 125°C
0.12
0.42
Isw_off
Switch off state leakage current
Vin = 38 V, VSW = 0 V
0.002
µA
Vin = 38 V, VSW = 0 V, –40°C
5.0
TJ ≤ 125°C
fsw
Switching Frequency
RFREQ = 62k, 124k, 240k
±10%
VFREQ
FREQ voltage
1.0
V
fSW range
Switching Frequency range
–40°C
≤ TJ ≤ 125°C
150
500
kHz
VSYNC
Sync pin threshold
SYNC rising
1.2
V
SYNC rising, –40°C
≤ TJ ≤ 125°C
1.6
SYNC falling
1.1
SYNC falling, –40°C
≤ TJ ≤ 125°C
0.8
Sync pin hysteresis
114
mV
ISYNC
SYNC leakage current
6
nA
FSYNC_UP
Upper frequency synchronization range As compared to nominal fSW,
30%
–40°C
≤ TJ ≤ 125°C
FSYNC_DN
Lower frequency synchronization range As compared to nominal fSW,
–20%
–40°C
≤ TJ ≤ 125°C
TOFFMIN
Minimum Off-time
365
ns
TONMIN
Minimum On-time
155
ns
THSLEEP_HYS
Sleep mode threshold hysteresis
VFB rising, % of THWAKE
101.2%
THWAKE
Wake up threshold
Measured at falling FB, COMP =
1.234
V
0.6 V
IBOOT
BOOT pin leakage current
BOOT = 16 V, SW = 10 V
0.0006
µA
BOOT = 16 V, SW = 10 V, –40°C
5.0
≤ TJ ≤ 125°C
PROTECTION
ILIMPK
Peak Current Limit
2.5
A
–40°C
≤ TJ ≤ 125°C
1.85
3.2
VFB_SC
Short circuit frequency foldback
Measured at FB falling
0.87
V
threshold
F_min_sc
Min Frequency in foldback
VFB < 0.3 V
71
kHz
VTH_PGOOD
Power Good Threshold
Measured at FB, PGOOD rising
92%
Measured at FB, PGOOD rising,
89%
95%
–40°C
≤ TJ ≤ 125°C
PGOOD hysteresis
2%
7%
8%
IPGOOD_HI
PGOOD leakage current
PGOOD = 5 V
0.2
nA
RDS_PGOOD
PGOOD on resistance
PGOOD sink current = 500 µA
64
6
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Product Folder Links: LM26001 LM26001-Q1


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