Adaptive Step-Up Converters

with 1.5A Flash Driver

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

*

This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device can be exposed to during board

level solder attach and rework. This limit permits only the use of the solder profiles recommended in the industry-standard specification, JEDEC 020A, para-

graph 7.6, Table 3 for IR/VPR and Convection reflow. Preheating is required. Hand or wave soldering is not allowed.

IN, OUT, NTC to AGND .........................................-0.3V to +6.0V

PGND, FGND to AGND .........................................-0.3V to +0.3V

(derate 17.5mW/°C above +70°C) .............................1410mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Bump Temperature* (soldering) ......................................+260°C

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IN Operating Voltage

2.5

5.5

V

1.62

3.6

V

(UVLO) Threshold

1.25

1.4

1.55

V

50

mV

IN UVLO Threshold

2.15

2.3

2.45

V

IN UVLO Hysteresis

50

mV

IN Standby Supply Current

1

μA

4

7

μA

LOGIC INTERFACE

LED_EN, GSMB

1.4

Logic Input-High Voltage

SCL, SDA

0.7 x

V

LED_EN, GSMB

0.4

Logic Input-Low Voltage

SCL, SDA

0.3 x

V

LED_EN Minimum High Time

(LED_EN is Internally Sampled

by a 1MHz Clock)

1

μs

LED_EN Propagation Delay

From LED_EN going high to rising edge on current

regulator

3

μs

LED_EN and GSMB Pulldown

Resistor

400

800

1600

k

-1

0.01

+1

Logic Input Current (SCL, SDA)

0.1

μA