參數(shù)資料
型號(hào)： TPS43000PWG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16
封裝： GREEN, TSSOP-16
文件頁(yè)數(shù)： 23/31頁(yè)
文件大小： 615K
代理商： TPS43000PWG4
TPS43000
SLUS489 OCTOBER 2001
3
www.ti.com
electrical characteristics over recommended operating junction temperature range,
TA = 40_C to 85_C for the TPS43000, RT = 75 k (500 kHz), VIN = VP = 3.5 V, VOUT = 3.1 V, COMP/FB
pins shorted, BUCK-configured, TA = TJ (unless otherwise noted)
VIN
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Start-up voltage
VP = VOUT = 3.5 V,
No load
1.45
1.65
1.85
V
Undervoltage lockout (UVLO) hysteresis
VP = VOUT = 3.5 V,
No load
No MOSFETs connected
60
150
300
mV
Shutdown current
SYNC/SD = 1.6 V
1
10
A
Shutdown current
SYNC/SD = VIN
0.5
2
A
Operating current
Not in PFM mode, no MOSFETs connected
1.0
1.4
mA
Sleep mode current
PFM mode,
COMP/FB=900 mV
75
140
A
BOOST-configured VIN operating current
Not in PFM mode, no MOSFETs connected,
BUCK pin grounded,
VIN = 3.1 V,
VP = VOUT = 3.5 V
30
75
A
BOOST-configured VIN sleep mode current
PFM mode, BUCK pin grounded,
VP = VOUT = 3.5 V,
VIN = 3.1 V,
COMP/FB=900 mV
25
60
A
VOUT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Shutdown current
SYNC/SD = VIN
0
2
Operating current
Not in PFM mode, no MOSFETs connected
1
5
A
Sleep mode current
PFM mode,
COMP/FB=900 mV
0
2
A
BOOST-configured VOUT operating current
Not in PFM mode, no MOSFETs connected,
BUCK pin grounded,
VIN = 3.1 V,
VP = VOUT = 3.5 V
1.0
1.4
mA
BOOST-configured VOUT sleep mode current
PFM mode, BUCK pin grounded,
VP = VOUT = 3.5 V,
VIN = 3.1 V,
COMP/FB=900 mV
50
120
A
VP
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Shutdown current
SYNC/SD = VIN
0.5
2
Operating current
Not in PFM mode, no MOSFETs connected
500
800
A
Sleep mode current
PFM mode,
COMP/FB=900 mV
0
2
A
error amplifier
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VREG, regulation voltage (COMP/FB pin)
1.8 V < VIN < 6 V
784
800
816
mV
VREG, regulation voltage (COMP/FB pin)
VIN = 3.5 V
788
800
812
mV
FB input current
VFB = 800 mV
150
10
150
nA
Sourcing current (out of COMP)
VFB = (VREG 100 mV),
VCOMP = 0 V,
2.0
0.5
mA
Sinking current (into COMP)
VFB = (VREG + 100 mV),
VCOMP = 2 V
0.5
1.2
mA
Maximum ouput voltage (COMP pin)
VFB = 0 V,
ICOMP = 100 A
1.6
2.0
V
Minimum output voltage (COMP pin)
VFB = 2 V,
ICOMP = +100 A
70
120
mV
Unity gain bandwidth
See Note 1
5
MHz
NOTE 1: Ensured by design. Not production tested.
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