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ADP5037

Dual 3 MHz, 800 mA Buck Regulators with Two 300 mA LDOs

Analog Devices 

Data Sheet

ADP5037

SPECIFICATIONS

GENERAL SPECIFICATIONS

VAVIN = VIN1 = VIN2 = 2.3 V to 5.5 V; VIN3 = VIN4 = 1.7 V to 5.5 V; TJ = −40°C to +125°C for minimum/maximum specifications, and TA =

25°C for typical specifications, unless otherwise noted.

Table 2.

Parameter

INPUT VOLTAGE RANGE

THERMAL SHUTDOWN

Threshold

Hysteresis

START-UP TIME1

BUCK1, LDO1, LDO2

BUCK2

EN1, EN2, EN3, EN4, MODE INPUTS

Input Logic High

Input Logic Low

Input Leakage Current

INPUT CURRENT

All Channels Enabled

All Channels Disabled

VIN1 UNDERVOLTAGE LOCKOUT

High UVLO Input Voltage Rising

High UVLO Input Voltage Falling

Low UVLO Input Voltage Rising

Low UVLO Input Voltage Falling

Symbol

VAVIN, VIN1, VIN2

Test Conditions/Comments

TSSD

TSSD-HYS

TJ rising

tSTART1

tSTART2

VIH

VIL

VI-LEAKAGE

ISTBY-NOSW

ISHUTDOWN

No load, no buck switching

TJ = −40°C to +85°C

UVLOVIN1RISE

UVLOVIN1FALL

UVLOVIN1RISE

UVLOVIN1FALL

Min Typ Max Unit

2.3

5.5 V

150

°C

20

°C

250

µs

300

µs

1.1

V

0.4 V

0.05 1

µA

108 175 µA

0.3 1

µA

3.9 V

3.1

V

2.275 V

1.95

V

1 Start-up time is defined as the time from EN1 = EN2 = EN3 = EN4 from 0 V to VAVIN to VOUT1, VOUT2, VOUT3, and VOUT4 reaching 90% of their nominal level. Start-up

times are shorter for individual channels if another channel is already enabled. See the Typical Performance Characteristics section for more information.

Rev. D | Page 3 of 28

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