ADP5022 データシートの表示（PDF） - Analog Devices

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ADP5022

Dual 3 MHz, 600 mA Buck Regulator with 150 mA LDO

Analog Devices 

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

BALL A1

INDICATOR

1

2

3

4

VOUT3 AGND VIN3 VDDA

A

VIN1 EN1 EN2 VIN2

B

SW1 EN3 MODE SW2

C

PGND1 VOUT1 VOUT2 PGND2

D

TOP VIEW

(BALL SIDE DOWN)

Not to Scale

Figure 3. Pin Configuration

ADP5022

Table 6. Pin Function Descriptions

Pin No. Mnemonic

Description

A1

VOUT3

LDO Output Voltage and Sensing Input.

A2

AGND

Analog Ground.

A3

VIN3

LDO Input Supply (VIN3 ≤ VIN1 = VIN2 = VDDA).

A4

VDDA

Supply Input for the Housekeeping Block and UVLO Sensing.

B1

VIN1

Buck1 Input Supply (VIN1 = VIN2 = VDDA).

B2

EN1

Buck1 Activation. Set EN1 = high: turn on Buck1. Set EN1 = low: turn off Buck1.

B3

EN2

Buck2 Activation. Set EN2 = high: turn on Buck2. Set EN2 = low: turn off Buck2.

B4

VIN2

Buck2 Input Supply (VIN2 = VIN1 = VDDA).

C1

SW1

Buck1 Switching Node.

C2

EN3

LDO Activation. Set EN3 = high: turn on LDO. EN3 = low: turn off LDO.

C3

MODE

Buck1/Buck2 Operating Mode: MODE = high: forced PWM operation. MODE = low: auto PWM/PSM operation.

C4

SW2

Buck2 Switching Node.

D1

PGND1

Dedicated Power Ground for Buck1.

D2

VOUT1

Buck1 Output Voltage Sensing Input.

D3

VOUT2

Buck2 Output Voltage Sensing Input.

D4

PGND2

Dedicated Power Ground for Buck2.

Rev. C | Page 7 of 28

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