Datasheet MAX17227A (Maxim) - 7

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Electrical Characteristics (continued)
(VIN = 1.5V, RSEL = 191kΩ, VOUT = 3.3V, TJ = -40°C to +125°C, typical values are at TJ = +25°C, CIN = 22μF, COUT = 22μF, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V Output Accuracy, ULPM V OUT Rising, when LX stops switching ACC_ULPM +1.5 +2.7 +4.6 % (Note 4) Load from 20mA to I DC Load Regulation ACC OUT at 80% of Peak LOAD -1 % Inductor Current DC Line Regulation ACCLINE Duty Cycle varied from 25% to Maximum -1 % Input Shutdown Current ISD_IN VEN = 0V, VOUT = 0V, TJ = +25°C 1 100 nA V Quiescent Supply EN = VIN, not switching, VOUT = 105% I of target voltage, T 12 nA Current Into IN Q_IN J = +25°C, RSEL = Open V Quiescent Supply EN = VIN, not switching, VOUT = 105% I of target voltage, T 350 660 nA Current Into OUT Q_OUT J = +25°C, RSEL = Open Maximum LX On-Time tONMAX TJ = -40°C to +125°C 1.0 1.75 2.2 μs TJ = +25°C 580 620 660 tON_1.2V VIN = 1.2V T LX On-Time in CCM J = -40°C to 500 620 740 ns +125°C tON_3.0V VIN = 3.0V TJ = +25°C 240 300 360 RSEL = 10kΩ, VIN = 1.2V, TJ = +25°C 80 86 (Note 5) LX Maximum Duty Cycle DC % RSEL = 10kΩ, VIN = 1.2V (Note 5) 74 86 RSEL = 191kΩ, VIN = 3.0V (Note 5) 65 75 V LX Leakage Current I LX = VIN = 5.5V, LEAK_LX T V J = +25°C 1 100 nA OUT = VEN = 0V IN Current Limit IIN_PT VIN = VEN = 3.3V, VOUT = 2.3V 1.1 A VOUT = 3.3V, (Note TJ = +25°C 1.9 2.0 2.1 Inductor Peak Current 6) I A Limit PEAK_LX T V J = -40°C to OUT = 3.3V 1.8 2.0 2.2 +125°C High-Side RDSON RDS_H VOUT = 3.3V 95 160 mΩ Low-Side RDSON RDS_L VOUT = 3.3V 50 90 mΩ Zero Crossing I Threshold ZX_LX (Note 6) 25 50 75 mA Soft Start Rate tSS_RATE Target VOUT = 5.0V 3 V/ms Enable Input Leakage ILEAK_EN TJ = +25°C, VEN = 5.5V 0.3 100 nA Enable Voltage VEN_IH VEN Rising, LX begins switching 0.6 0.95 V Threshold VEN_IL VEN Falling, LX stops switching 0.15 0.55 Required Select ACC Resistor Accuracy RSEL
Note:
Use the resistor from Table 1. -1 +1 % Select Resistor t Detection Time RSEL CRSEL < 2pF (Note 7) 240 600 1320 μs www.maximintegrated.com Maxim Integrated | 7 Document Outline General Description Applications Benefits and Features Typical Operating Circuit Absolute Maximum Ratings Package Information TDFN WLP Electrical Characteristics Electrical Characteristics (continued) Typical Operating Characteristics Typical Operating Characteristics (continued) Pin Configurations WLP TDFN Pin Description Functional Diagrams Detailed Description Control Scheme Output Voltage Selection Fixed-Output Voltage Version Features Enable Soft-Start Control Short-Circuit Protection Thermal Shutdown Design Procedure Inductor Selection Input Capacitor Output Capacitor PCB Layout Guidelines Thermal Considerations Ordering Information Revision History