AS3715 datasheet(2/159 Pages) AMSOSRAM

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[v1-03] 2015-Aug-10

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AS3715

Dual or Single Power Path PMIC

The AS3715 is a compact System PMU supporting two Li-Ion

batteries and up to 14 power rails.

The device offers advanced power management functions. All

necessary ICs and peripherals in a battery powered mobile

device are supplied by the AS3715. It features 3 DCDC buck

converters, one DCDC buck controller, a 5V HDMI booster, a HV

backlight boost controller with 3 current sinks as well as 8 LDOs

(2 low noise). The different regulated supply voltages are

programmable via the serial control interface. 3-4MHz DCDC

operation with 0.47uH coils is reducing cost and PCB space.

AS3715 contains a linear or switch mode Li-Ion battery charger

with constant current and constant voltage operation. The

maximum charging current is 1.5A. An internal battery switch

and an optional external switch are separating the battery

during charging or whenever an external power supply is

present. In addition a second external battery path can be

controlled. With these switches it is also possible to operate

with no or deeply discharged batteries.

A dual USB input current limiter can be used to control the

current taken form the USB supplies or charger inputs.

Additional features are a 30V OV protection and JEITA compliant

battery temperature supervision with selectable NTC beta

values.

The single supply voltage may vary from 2.7V to 5.5V.

Ordering Information and Content Guide appear at end of

datasheet.

Key Benefits and Features

The key benefits and features of AS3715, Dual or Single Power

Path PMIC are listed below.

Figure 1:

Added Value of Using AS3715

Benefits

Features

• Compact design due to small coils for IO and

memory voltage generation

• DCDC step down regulators (3-4MHz)

• Output (0.6V-3.3V; 2x1A, 1x2A)

• High current generation with external power

stage to minimize PMIC power dissipation

• DCDC step down controller

• DVM (0.6V-1.5V; 1x6A)

• Multiple independent voltage rails for general

purpose IO supplies

• 8 universal LDOs

• 6x universal IO range(0.8-3.3V; 0.3A)

• 2x analog (1.2-3.3V; 0.25A)

General Description

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