參數(shù)資料
型號(hào)： PTPS65910A1RSL
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： POWER SUPPLY SUPPORT CKT, PQCC48
封裝： 6 X 6 MM, 1 MM HEIGHT, GREEN, PLASTIC,VQFN-48
文件頁(yè)數(shù)： 7/89頁(yè)
文件大?。?/td> 941K
代理商： PTPS65910A1RSL
PRODUCTPREVIEW
www.ti.com
SWCS046C – MARCH 2010 – REVISED JUNE 2010
VDD1 SMPS
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input voltage (VCC1 and VCC7) VIN
VIOUT = 0.6 V to 1.5 V, VGAIN_SEL = 00
2.7
5.5
V
VOUT + 0.9
VOUT > 1.8 V, VGAIN_SEL = 10 or 11
5.5
V
DC output voltage (VOUT)
VGAIN_SEL = 00, IOUT = 0 to IOUTmax:
max programmable voltage, SEL[6:0] = 1001011
1.5
default voltage, BOOT[1:0] = 00
–3%
1.2
+3%
default voltage, BOOT[1:0] = 01
–3%
1.2
+3%
V
min programmable voltage, SEL[6:0] = 0000011
0.6
SEL[6:0] = 000000: power down
0
VGAIN_SEL = 10, SEL = 0101011 = 43, IOUT = 0
–3%
2.2
+3%
V
to IOUTmax
VGAIN_SEL = 11, SEL = 0101000 = 40, IOUT = 0
–3%
3.2
+3%
V
to IOUTmax
DC output voltage programmable
VGAIN_SEL = 00, 72 steps
12.5
mV
step (VOUTSTEP)
Rated output current IOUTmax
ILIMSEL = 0
1000
mA
ILIMSEL = 1
1500
P-channel MOSFET
VIN = VINmin
300
m
Ω
On-resistance RDS(ON)_PMOS
VIN = 3.8 V
250
400
P-channel leakage current
VIN = VINmax, SW1 = 0 V
2
A
ILK_PMOS
N-channel MOSFET
VIN = VMIN
300
m
Ω
On-resistance RDS(ON)_NMOS
VIN = 3.8 V
250
400
N-channel leakage current ILK_NMOS
VIN = VINmax, SW1 = VINmax
2
A
PMOS current limit (high-side)
VIN = VINmin to VINmax, ILIMSEL = 0
1200
mA
VIN = VINmin to VINmax, ILIMSEL = 1
2200
NMOS current limit (low-side)
Source current load:
VIN = VINmin to VINmax, ILIMSEL = 0
1200
VIN = VINmin to VINmax, ILIMSEL = 1
2200
mA
Sink current load:
VIN = VINmin to VINmax, ILIMSEL = 0
1200
VIN = VINmin to VINmax, ILIMSEL = 1
1800
DC load regulation
On mode, IOUT = 0 to IOUTmax
20
mV
On mode, VIN = VINmin to VINmax
DC line regulation
20
mV
@ IOUT = IOUTmax
Transient load regulation
VIN = 3.8 V, VOUT = 1.2 V
IOUT = 0 to 500 mA , Max slew = 100 mA/s
50
mV
IOUT = 700 mA to 1.2A , Max slew = 100 mA/s
t on, off to on
IOUT = 200 mA
350
s
From VOUT = 0.6 V to 1.5 V and VOUT = 1.5 V to
Output voltage transition rate
0.6 V IOUT = 500 mA
TSTEP[2:0] = 001
12.5
TSTEP[2:0] = 011 (default)
7.5
mV/s
TSTEP[2:0] = 111
2.5
Overshoot
SMPS turned on
3%
0.025 ×
Power-save mode ripple voltage
Pulse skipping mode, IOUT = 1 mA
VPP
VOUT
Switching frequency
2.7
3
3.3
MHz
Copyright 2010, Texas Instruments Incorporated
15
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