參數(shù)資料
型號: TPS62675YFDR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 1.25 A SWITCHING REGULATOR, 6600 kHz SWITCHING FREQ-MAX, PBGA6
封裝: 0.40 MM HEIGHT, GREEN, DSBGA-6
文件頁數(shù): 29/34頁
文件大小: 1129K
代理商: TPS62675YFDR
SLVS952C
– APRIL 2010 – REVISED APRIL 2011
ELECTRICAL CHARACTERISTICS (continued)
Minimum and maximum values are at VI = 2.3V to 5.5V, VO = 1.8V, EN = 1.8V, AUTO mode and TA = –40°C to 85°C; Circuit
of Parameter Measurement Information section (unless otherwise noted). Typical values are at VI = 3.6V, VO = 1.8V, EN =
1.8V, AUTO mode and TA = 25°C (unless otherwise noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Clock presence
4
27
MHz
detect frequency
TPS62674
EXTCLK
TPS62679
Clock presence
40
60
%
detect duty cycle
POWER SWITCH
VI = V(GS) = 3.6V. PWM mode
170
m
rDS(on)
P-channel MOSFET on resistance
VI = V(GS) = 2.5V. PWM mode
230
m
Ilkg
P-channel leakage current, PMOS
V(DS) = 5.5V, -40°C ≤ TJ ≤ 85°C
1
μA
VI = V(GS) = 3.6V. PWM mode
120
m
rDS(on)
N-channel MOSFET on resistance
VI = V(GS) = 2.5V. PWM mode
180
m
Ilkg
N-channel leakage current, NMOS
V(DS) = 5.5V, -40°C ≤ TJ ≤ 85°C
2
μA
Discharge resistor for power-down
rDIS
70
150
sequence
TPS62671
TPS62672
2.3V
≤ VI ≤ 4.8V. Open loop
900
1000
1150
mA
TPS62674
P-MOS current limit
TPS62679
2.3V
≤ VI ≤ 4.8V. Open loop
TPS62675
1000
1100
1250
mA
Input current limit under short-circuit
VO shorted to ground
12
mA
conditions
Thermal shutdown
140
°C
Thermal shutdown hysteresis
10
°C
OSCILLATOR
TPS62671
Oscillator center
TPS62672
IO = 0mA. PWM operation
5.4
6
6.6
MHz
frequency
TPS62675
fSW
Oscillator center
TPS62674
IO = 0mA. PWM operation
4.9
5.45
6.0
MHz
frequency
TPS62679
OUTPUT
2.3V
≤ VI ≤ 4.8V, 0mA ≤ IO ≤ 500 mA
0.98
×VNOM
VNOM
1.03
×VNOM
V
PFM/PWM operation
TPS62671
2.3V
≤ VI ≤ 5.5V, 0mA ≤ IO ≤ 500 mA
TPS62672
0.98
×VNOM
VNOM
1.04
×VNOM
V
PFM/PWM operation
TPS62679
2.3V
≤ VI ≤ 5.5V, 0mA ≤ IO ≤ 500 mA
0.98
×VNOM
VNOM
1.02
×VNOM
V
PWM operation
Regulated DC
output voltage
2.3V
≤ VI ≤ 5.5V, 0mA ≤ IO ≤ 500 mA
TPS62674
0.98
×VNOM
VNOM
1.02
×VNOM
V
VOUT
PWM operation
2.3V
≤ VI ≤ 4.8V, 0mA ≤ IO ≤ 600 mA
0.98
×VNOM
VNOM
1.03
×VNOM
V
PFM/PWM operation
TPS62675
2.3V
≤ VI ≤ 5.5V, 0mA ≤ IO ≤ 600 mA
0.98
×VNOM
VNOM
1.02
×VNOM
V
PWM operation
Line regulation
VI = VO + 0.5V (min 2.3V) to 5.5V, IO = 200 mA
0.23
%/V
Load regulation
IO = 0mA to 500 mA. PWM operation
–0.00045
%/mA
Feedback input resistance
480
k
TPS62671
IO = 1mA, VO = 1.8 V
14
mVPP
Power-save mode
ΔVO
TPS62675
ripple voltage
IO = 1mA, VO = 1.2 V
16
mVPP
TPS62679
TPS62671
IO = 0mA, Time from active EN to VO
130
μs
TPS62674
IO = 0mA, Time from EXTCLK clock active to VO
125
μs
Start-up time
IO = 0mA, Time from EXTCLK clock active to VO
TPS62679
L = 1
μH DCR = 240mΩ 0603 (TY CKP1608S1R0)
430
μs
CO = 2.2μF 4V 0402 (TY AMK105BJ225MP)
4
Copyright
2010–2011, Texas Instruments Incorporated
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