Datasheet

Data Sheet ADP5050
Rev. 0 | Page 5 of 60
SPECIFICATIONS
V
IN
= 12 V, V
VREG
= 5.1 V, T
J
= −40°C to +125°C for minimum and maximum specifications, and T
A
= 25°C for typical specifications,
unless otherwise noted.
Table 1.
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
INPUT SUPPLY VOLTAGE RANGE
V
IN
4.5
15.0
V
PVIN1, PVIN2, PVIN3, PVIN4 pins
QUIESCENT CURRENT PVIN1, PVIN2, PVIN3, PVIN4 pins
Operating Quiescent Current I
Q(4-BUCKS)
4.8 6.25 mA No switching, all ENx pins high
I
SHDN(4BUCKS+LDO)
25 65 µA All ENx pins low
UNDERVOLTAGE LOCKOUT UVLO PVIN1, PVIN2, PVIN3, PVIN4 pins
Rising Threshold V
UVLO-RISING
4.2 4.36 V
Falling Threshold V
UVLO-FALLING
3.6 3.78 V
Hysteresis V
HYS
0.42 V
OSCILLATOR CIRCUIT
Switching Frequency f
SW
700 740 780 kHz RT = 25.5 kΩ
Switching Frequency Range 250 1400 kHz
SYNC Input
Input Clock Range f
SYNC
250 1400 kHz
Input Clock Pulse Width
Minimum On Time t
SYNC_MIN_ON
100 ns
Minimum Off Time t
SYNC_MIN_OFF
100 ns
Input Clock High Voltage V
H(SYNC)
1.3 V
Input Clock Low Voltage V
L(SYNC)
0.4 V
SYNC Output
Clock Frequency f
CLK
f
SW
kHz
Positive Pulse Duty Cycle t
CLK_PULSE_DUTY
50 %
Rise or Fall Time t
CLK_RISE_FAL L
10 ns
High Level Voltage V
H(SYNC_OUT)
V
VREG
V
PRECISION ENABLING EN1, EN2, EN3, EN4, EN5 pins
High Level Threshold V
TH_H(EN)
0.806 0.832 V
Low Level Threshold V
TH_L(EN)
0.688 0.725 V
Pull-Down Resistor R
PULL-DOWN(EN)
1.0 MΩ
POWER GOOD
Internal Power-Good Rising Threshold V
PWRGD(RISE)
86.3 90.5 95 %
Internal Power-Good Hysteresis V
PWRGD(HYS)
3.3 %
Internal Power-Good Falling Delay t
PWRGD_FALL
50 µs
Rising Delay for PWRGD Pin t
PWRGD_PIN_RISE
1 ms
Leakage Current for PWRGD Pin I
PWRGD_LEAKAGE
0.1 1 µA
Output Low Voltage for PWRGD Pin V
PWRGD_LOW
50 100 mV I
PWRGD
= 1 mA
LOGIC INPUTS (SCL AND SDA PINS) VDDIO = 3.3 V
High Level Threshold V
LOGIC_HIGH
0.7 × VDDIO V
Low Level Threshold V
LOGIC_LOW
0.3 × VDDIO V
LOGIC OUTPUTS
Low Level Output Voltage
SDA Pin V
SDA_LOW
0.4 V VDDIO = 3.3 V, I
SDA
= 3 mA
nINT Pin V
nINT_LOW
0.4 V I
nINT
= 3 mA
INTERNAL REGULATORS
VDD Output Voltage V
VDD
3.2 3.305 3.4 V I
VDD
= 10 mA
VDD Current Limit I
LIM_VDD
20 51 80 mA
VREG Output Voltage V
VREG
4.9 5.1 5.3 V
VREG Dropout Voltage V
DROPOUT
225 mV I
VREG
= 50 mA
VREG Current Limit I
LIM_VREG
50 95 140 mA