Datasheet

Data Sheet ADP2503/ADP2504
Rev. C | Page 3 of 16
SPECIFICATIONS
V
IN
= 3.6 V, V
OUT
= 3.3 V, @ T
A
= T
J
= −40°C to +125°C for minimum/maximum specifications and T
A
= 25°C for typical specifications,
unless otherwise noted.
1
Table 1.
Parameters Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Input Voltage Range 2.3 5.5 V
Undervoltage Lockout Threshold V
IN
rising 2.15 2.20 2.25 V
V
IN
falling 2.10 2.14 2.20 V
OUTPUT CHARACTERISTICS
Output Voltage Range 2.8 5.5 V
Feedback Impedance 450 kΩ
Feedback Voltage ADP2503/ADP2504 adjustable output (PWM operation, no load) 490 500 510 mV
Output Voltage Initial Accuracy ADP2503/ADP2504 fixed output (PWM operation, no load) −2 +2 %
Load and Line Regulation V
IN
= 2.3 V to 3.6 V, I
LOAD
= 0 mA to 500 mA, forced PWM mode 0.5 %
V
IN
= 2.3 V to 5.5 V, I
LOAD
= 0 mA to 500 mA, forced PWM mode 0.6 %
CURRENT CHARACTERISTICS
Quiescent Current (V
IN
) I
OUT
= 0 mA, V
IN
= EN = 3.6 V, device not switching 38 50 µA
Shutdown Current T
A
= T
J
= −40°C to +125°C 0.2 1 µA
SWITCH CHARACTERISTICS
N-Channel Switches V
IN
= 3.6 V 150 mΩ
P-Channel Switches V
IN
= V
OUT
= 3.6 V 150 mΩ
P-Channel Leakage T
J
= −40°C to +125°C 1 µA
Switch Current Limit
ADP2504 1.3 2.0 A
ADP2503 1.0 1.4 A
Reverse Current Limit 1.1 A
OSCILLATOR AND STARTUP
Oscillator Frequency 2.1 2.5 2.9 MHz
On Time PMOS1 (Buck Mode) Minimum duty cycle = 30% 130 ns
On Time NMOS2 (Boost Mode) Maximum duty cycle = 50% (×2) 200 ns
SYNC Clock Frequency 2.2 2.8 MHz
SYNC Clock Minimum Off Time 160 ns
LOGIC LEVEL CHARACTERISTICS
EN, SYNC Input High Threshold 1.2 V
EN, SYNC Input Low Threshold 0.4 V
EN, SYNC Leakage Current V
EN
= V
IN
, V
SYNC
= V
IN
−1 +0.1 +1 µA
THERMAL CHARACTERISTICS
Thermal Shutdown Threshold 150 °C
Thermal Shutdown Hysteresis 25 °C
1
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).