MAX8660(2006) 데이터 시트보기 (PDF) - Maxim Integrated

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MAX8660
(Rev.:2006)

High-Efficiency, Low-IQ, PMICs with Dynamic Voltage Management for Mobile Applications

Maxim Integrated 

High-Efficiency, Low-IQ, PMICs with Dynamic

Voltage Management for Mobile Applications

Pin Description

NAME

PIN

MAX8660 MAX8661

FUNCTION

1

IN5

REG5 Power Input. Connect IN5 to IN to ensure V5 rises first to meet Intel sequencing requirements. If

IN5 adherence to Intel specifications is not required, IN5 can be connected to V1, V2, or another supply

between 2.35V and VIN. See the Linear Regulators (REG5–REG8) section for more information.

2

V5

REG5 Linear-Regulator Output. V5 defaults to 1.8V and is adjustable from 1.7V to 2.0V through the

V5

serial interface. The input to the V5 regulator is IN5. Use V5 to power VCC_MVT, VCC_BG,

VCC_OSC13M, and VCC_PLL on Intel XScale processors. V5 is internally pulled to AGND through

2kΩ when REG5 is shut down.

3

PV4

4

LX4

PV4

REG4 Power Input. Connect a 4.7µF ceramic capacitor from PV4 to PG4. All PV pins and IN must be

connected together externally.

LX4 REG4 Switching Node. Connect LX4 to the REG4 inductor. LX4 is high impedance when REG4 is shut down.

5

PG4

PG4

REG4 Power Ground. Connect PG1, PG2, PG3, PG4, and AGND together. Refer to the MAX8660 EV kit

data sheet for more information.

REG2 Voltage Select Input. SET2 is a tri-level logic input. Connect SET2 to select the V2 output

6

SET2

SET2 voltage as detailed in Table 4. The REG2 output voltage selected by SET2 is latched at the end of the

REG2 soft-start period. Changes to SET2 after the startup period have no effect.

7

V6

REG6 Linear-Regulator Output. REG6 is activated and programmed through the serial interface to

V6 output from 1.8V to 3.3V in 0.1V steps. REG6 is off by default. V6 is internally pulled to AGND through

350Ω when REG6 is shut down. V6 optionally powers VCC_CARD1 on Intel XScale processors.

IN67

8

—

V7

9

—

REG6 and REG7 Power Input. IN67 is typically connected to IN. IN67 can also be connected to any

supply between 2.35V to VIN.

IN6 REG6 Power Input. IN6 is typically connected to IN. IN6 can also be connected to any supply between

2.35V to VIN.

REG7 Linear-Regulator Output. REG7 is activated and programmed through the serial interface to

— output from 1.8V to 3.3V in 0.1V steps. REG7 is off by default. V7 is internally pulled to AGND through

350Ω when REG7 is shut down. V7 optionally powers VCC_CARD2 on Intel XScale processors.

—

N.C. No Internal Connection

10

V2

REG2 Voltage Sense Input. Connect V2 directly to the REG2 output voltage. The output voltage of

V2 REG2 is selected by SET2. V2 is internally pulled to AGND through 650Ω when REG2 is shut down. V2

powers VCC_MEM on Intel XScale processors.

11 SCL

12 SDA

13 LBO

SCL

SDA

LBO

Serial-Clock Input. See the I2C Interface section.

Serial-Data Input. See the I2C Interface section.

Low-Battery Output. LBO is an open-drain output that pulls low when LBF is below its threshold. LBO

typically connects to the nBATT_FAULT input of the Intel XScale processor to indicate that the battery

has been removed or discharged.

14

PV2

15

LX2

PV2 REG2 Power Input. Connect a 4.7µF ceramic capacitor from PV2 to PG2. All PV pins and IN must be

connected together externally.

LX2 REG2 Switching Node. Connect LX2 to the REG2 inductor. LX2 is high impedance when REG2 is shut down.

16 PG2

17

IN8

18

IN

PG2

REG2 Power Ground. Connect PG1, PG2, PG3, PG4, and AGND together. Refer to the MAX8660 EV kit

data sheet for more information.

IN8 REG8 Input Power Connection. IN8 must be connected to IN.

IN

Main Battery Input. This input provides power to the IC. Connect a 0.47µF ceramic capacitor from IN

to AGND.

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