1.2 A, 20 V, 700 kHz/1.4 MHz, Nonsynchronous Step-Down Regulator ADP2300/ADP2301
FEATURES
1.2 A maximum load current ±2%...
1.2 A, 20 V, 700 kHz/1.4 MHz, Nonsynchronous Step-Down
Regulator ADP2300/ADP2301
FEATURES
1.2 A maximum load current ±2% output accuracy over temperature range Wide input voltage range: 3.0 V to 20 V 700 kHz (ADP2300) or 1.4 MHz (ADP2301) switching frequency options High efficiency up to 91% Current-mode control architecture Output voltage from 0.8 V to 0.85 × VIN Automatic PFM/PWM mode switching Precision enable pin with hysteresis Integrated high-side MOSFET Integrated bootstrap diode Internal compensation and soft start Minimum external components Undervoltage lockout (UVLO) Overcurrent protection (OCP) and thermal shutdown (TSD) ADIsimPower™ online design tool Available in ultrasmall, 6-lead TSOT package
TYPICAL APPLICATIONS CIRCUIT
3.0V TO 20V BST VIN VOUT
ADP2300/ ADP2301
ON OFF EN GND
SW
FB
08342-001
Figure 1.
100 95 90 EFFICIENCY (%) 85 80 75 70 65 60
fSW = 1.4MHz fSW = 700kHz
APPLICATIONS
LDO replacement for digital load applications Intermediate power rail conversion Communications and networking Industrial and instrumentation Healthcare and medical Consumer
VIN = 12V VOUT = 5.0V 0 0.2 0.4 0.6 IOUT (A) 0.8 1.0 1.2
08342-069
Free Datasheet http://www.Datasheet4U.com
Figure 2. Efficiency vs. Output Current
GENERAL DESCRIPTION
The ADP2300/ADP2301 are compact, constant-frequency, current-mode, step-down dc-to-dc
regulators with integrated power MOSFET. The ADP2300/ADP2301 devices run from input voltages of 3.0 V to 20 V, making them suitable for a wide range o...
