Datasheet

ADP5040 Data Sheet
Rev. 0 | Page 4 of 40
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
SW CHARACTERISTICS
SW On Resistance R
PFET
PFET, AVIN = VIN1 = 3.6 V 180 240 mΩ
PFET, AVIN = VIN1 = 5 V 140 190 mΩ
R
NFET
NFET, AVIN = VIN1 = 3.6 V 170 235 mΩ
NFET, AVIN = VIN1 = 5 V 150 210 mΩ
Current Limit I
LIMIT
PFET switch peak current limit 1600 1950 2300 mA
ACTIVE PULL-DOWN EN1 = 0 V 85 Ω
OSCILLATOR FREQUENCY F
OSC
2.5 3.0 3.5 MHz
1
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).
LDO1, LDO2 SPECIFICATIONS
V
IN2
, V
IN3
= (V
OUT2
,V
OUT3
+ 0.5 V) or 1.7 V (whichever is greater) to 5.5V; AVIN, VIN1 ≥ VIN2, VIN3; C
IN
= 1 μF , C
OUT
= 2.2 μF;
T
J
= −40°C to +125°C for minimum/maximum specifications, and T
A
= 25°C for typical specifications, unless otherwise noted.
1
Table 3.
Parameter Symbol Conditions Min Typ Max Unit
INPUT VOLTAGE RANGE V
IN2
, V
IN3
T
J
= −40°C to +125°C 1.7 5.5 V
OPERATING SUPPLY CURRENT
Bias Current per LDO
2
I
VIN2BIAS
/I
VIN3BIAS
I
OUT3
= I
OUT4
= 0 μA 10 30 μA
I
OUT2
= I
OUT3
= 10 mA
60 100 μA
I
OUT2
= I
OUT3
= 300 mA
165 245 μA
Total System Input Current I
IN
Includes all current into AVIN, VIN1, VIN2 and VIN3
LDO1 or LDO2 Only I
OUT2
= I
OUT3
= 0 μA, all other channels disabled 53 μA
LDO1 and LDO2 Only I
OUT2
= I
OUT3
= 0 μA, buck disabled 74 μA
OUTPUT VOLTAGE ACCURACY V
OUT2
, V
OUT3
100 μA < I
OUT2
< 300 mA, 100 μA < I
OUT3
< 300 mA
V
IN2
= (V
OUT2
+ 0.5 V) to 5.5 V,
V
IN3
= (V
OUT3
+ 0.5 V) to 5.5 V
−3 +3 %
REFERENCE VOLTAGE V
FB2
, V
FB3
0.485 0.500 0.515 V
REGULATION
Line Regulation (ΔV
OUT2
/V
OUT2
)/ΔV
IN2
(ΔV
OUT3
/V
OUT3
)/ΔV
IN3
V
IN2
= (V
OUT2
+ 0.5 V) to 5.5 V
V
IN3
= (V
OUT3
+ 0.5 V) to 5.5 V
−0.03 +0.03 %/V
I
OUT2
= I
OUT3
= 1 mA
Load Regulation
3
(ΔV
OUT2
/V
OUT2
)/ΔI
OUT2
(ΔV
OUT3
/V
OUT3
)/ΔI
OUT3
I
OUT2
= I
OUT3
= 1 mA to 300 mA 0.002 0.0075 %/mA
DROPOUT VOLTAGE
4
V
DROPOUT
V
OUT2
= V
OUT3
= 5.0 V, I
OUT2
= I
OUT3
= 300 mA 72 mV
V
OUT2
= V
OUT3
= 3.3 V, I
OUT2
= I
OUT3
= 300 mA 86 140 mV
V
OUT2
= V
OUT3
= 2.5 V, I
OUT2
= I
OUT3
= 300 mA 107 mV
V
OUT2
= V
OUT3
= 1.8 V, I
OUT2
= I
OUT3
= 300 mA 180 mV
ACTIVE PULL-DOWN R
PDLDO
EN2/EN3 = 0 V 600 Ω
CURRENT-LIMIT THRESHOLD
5
I
LIMIT
T
J
= −40°C to +125°C 335 470 mA
OUTPUT NOISE OUT
LDO2NOISE
10 Hz to 100 kHz, V
IN3
= 5 V, V
OUT3
= 3.3 V 123 μV rms
10 Hz to 100 kHz, V
IN3
= 5 V, V
OUT3
= 2.8 V 110 μV rms
10 Hz to 100 kHz, V
IN3
= 5 V, V
OUT3
= 1.5 V 59 μV rms
OUT
LDO1NOISE
10 Hz to 100 kHz, V
IN2
= 5 V, V
OUT2
= 3.3 V 140 μV rms
10 Hz to 100 kHz, V
IN2
= 5 V, V
OUT2
= 2.8 V 129 μV rms
10 Hz to 100 kHz, V
IN2
= 5 V, V
OUT2
= 1.5 V 66
μV rms