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LM3263 数据表(PDF) 5 Page - Texas Instruments

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部件名 LM3263
功能描述  High-Current Step-Down DC-DC Converter with MIPI짰 RF Front-End Control Interface for RF Power Amplifiers
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LM3263 数据表(HTML) 5 Page - Texas Instruments

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LM3263
www.ti.com
SNVS837 – JUNE 2013
ELECTRICAL CHARACTERISTICS
(1) (2) (3)
Limits in standard typeface are for TA = TJ = 25°C. Limits in boldface type apply over the full operating ambient temperature
range (
−30°C ≤ TJ = TA ≤ +90°C). Unless otherwise noted, specifications apply to the Typical Application Diagram with
VBATT = 3.8V (=PVIN = SVDD = PACB), VIO = 1.8V.
Symbol
Parameter
Condition
Min
Typ
Max
Units
VFB,MIN
Feedback voltage at minimum setting
VSET[7:0] = 1Bh, SMPS_CFG[5] = 1b
0.350
0.4
0.450
V
Feedback voltage at maximum
VSET[7:0] = F0h, VBATT = 3.9V,
VFB,MAX
3.492
3.6
3.708
setting
SMPS_CFG[5] = 0b
ISHDN
Shutdown supply current
SW = 0V, VIO = 0V(4)
0.02
4
IL-PWR
Low-power mode supply current
VSET[7:0] = 00h
0.225
µA
IQ-PFM
PFM mode supply current into SVDD
No switching(5), SMPS_CFG[5] = 1b
360
425
IQ PWM
PWM mode supply current
No switching(5), SMPS_CFG[5] = 0b
1240
1400
ILIM, PFET Transient Positive transient peak current limit
1.9
2.1
ILIM, PFET Steady-
Positive steady-state peak current
1.35
1.45
1.65
State
limit
VSET[7:0] = 64h(6)
A
Positive Active Current Assist peak
ILIM, P-ACB
1.4
1.7
2.0
current limit
ILIM,NFET
NFET current limit
VSET[7:0] = A7h(6)
−1.50
FOSC
Average Internal oscillator frequency
VSET[7:0] = A7h
2.43
2.7
2.97
MHz
IVIO-IN
VIO voltage average input current
Average during a 26 MHz
1.25
mA
VIORST
RFFE I/O voltage reset voltage
VIO toggled low
0.45
V
IINVIO
VIO reset current
VIO = 0.45V
−1.0
1.0
µA
IIN
SDATA, SCLK input current
VIO = 1.95V
−1.0
1.0
Input high-level threshold SDATA,
VIH
0.4* VIO
0.7 * VIO
SCLK
VIL
Input low-level threshold SDATA,
0.3 * VIO
0.6 * VIO
V
SCLK
VIH-GPO
Input high-level threshold GPO1
1.35
VIL-GPO
Input low-level threshold GPO1
0.67
VOH
Output high-level threshold SDATA
ISDATA = 2mA
VIO * 0.8
VIO + 0.01
VOL
Output low-level threshold SDATA
ISDATA = –2mA
VIO * 0.2
V
VOH-GPO
Output high-level threshold GPO
VIO - 0.15
VIO + 0.1
IOUT = ±200 µA
VOL-GPO
Output low-level threshold GPO
-0.4
0.3
VSET-LSB
Output voltage LSB
VSET[7:0] = A7h to A8h
15
mV
(1)
All voltages are with respect to the potential at the GND pins.
(2)
Min and Max limits are specified by design, test, or statistical analysis.
(3)
The parameters in the electrical characteristics table are tested under open loop conditions at PVIN = SVDD = PACB = 3.8V.
(4)
Shutdown current includes leakage current of PFET.
(5)
Iq specified here is when the part is not switching.
(6)
Current limit is built-in, fixed, and not adjustable.
Copyright © 2013, Texas Instruments Incorporated
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