LM3263TMXSLASHNOPB datasheet(5/40 Pages) TI1

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LM3263

www.ti.com

SNVS837A – JUNE 2013 – REVISED AUGUST 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

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

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)

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

VIORST

RFFE I/O voltage reset voltage

VIO toggled low

0.45

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

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

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

(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.

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